Craythur is a completely new WebOS that puts big emphasis on looks, and it does that part really well, with a well chosen desktop background and transparent window borders similar to those Vista's Aero.Website:
Forgot to forward that email to yourself? Missed copying the presentation for tomorrow to 
Xindesk is a free, one stop shop solution for making all your files, calendars, contacts and other data accessible and in sync wherever you are. It's pretty much like accessing your computer from any standard web browser, from a computer, a mobile phone or any other device connected to the Internet.
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CorneliOS is an easy-to-use and cross-browser "Web Desktop Environment", "Web 
Operating System" or "Web Office" and comes with a set of cool applications.
CorneliOS includes a Content Management System (CMS) so that you can easily set up and manage your own website as well as a Database Management System that allows to rapidly build any kind of database application.
Website:
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atoolo is a personal communication platform or differently spoken: an individual home in the net and an useful aid with the everyday work on the PC.
atoolo covers different tools for common working, for the effective and simple organization of dates, for the storage of important files and for collecting texts, pictures and other files.
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Zimdesk has everything you would want from a regular desktop PC.The BIG difference is that zimdesk runs from a browser, allowing you to access all the applications, Games and accessories from any PC anywhere in the world.
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Originating from the thought to put personal things in a cool and stylish way on the web, the 
idea for a new kind of website came to light. After reaching enlightenment with Mac OS X Tiger, I wanted to put my personal desktop with personal content online. In an enlightening way. From today, you will never look at other personal homepages quite the same way again. Presenting OS X Mercury. Because it's 2007.
Mercury is driven by the Oxygen framework, an advanced collaboration of DHTML and JavaScript technologies, as well as Web 2.0 components, which result in an all-new kind of window management, giving you the best possible experience ever seen on a website. Oxygen makes it possible to have multiple programs in Mercury open, working seamlessly together. Just like you would expect it from a Mac.
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Dekoh is a free software platform that allows you to organize all of your media in one place, on 
your desktop—and share it with people you choose. There's no uploading to a website, so storage is limited only by the size of your hard drive. You can share as little or as much as you want, with one friend or 100. And Dekoh is open-source, so you can create and share applications of your own.
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Glide is The first complete online operating system and welcomes PC, Mac, Linux, RIM BlackBerry, Palm, Windows Mobile and Symbian
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AjaxWindows is a virtual operating system that lets you store, edit and share your files using only a browser.
You can use:
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Peepel is a Collaborative Online Office Suite featuring:
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YouOS is an experiment in a new kind of computing platform:Website:
Your personal webtop
goowy is a service that offers you simple, intuitive tools for communicating and sharing on the 
web.
Why should I use goowy?
Because it gives you everything you need in a fresh, simple package, including an instant messenger that lets you chat with your buddies from multiple networks, powerful e-mail, contacts & calendar, customized news, rss, minis, file storage, sharing & finally some fun games when you just want to relax.
Your Personal Online Desktop.
Get your free Online Operating System account now and experience the next generation of the World Wide Web with your personal online desktop. Gain access to an entire operating system running in your browser.
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Cloudo is a free web service offering all the applications you have in your computer, but right from your web browser.
Forgot forwarding that presentation file to your personal email address? Left office without reading through the agenda for tomorrow? Forgot copying those vacation images onto your USB stick to show your friends?Imagine a world where your computer wasn't tied to a physical computer, but rather a computer that lived on the Internet, instantly accessible from any computer or mobile phone connected to the Internet, no matter where you are or what you are up to. Cloudo offers just this.
With Cloudo, every computer, in school, at work, at your friends' or even in the library becomes your own, free of charge computer. And with Cloudo Mobile your online computer is accessible from your mobile phone as well.
Use Cloudo as your default computer, or use it side by side with you work or home computer.
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schmedley is so much more than that. The Web 2.0 world is overrun with "startpages" that are
filled with handy little items called widgets. Most of these widgets have limited functionality and don't offer much more than an alternative door into content that is already easy to get elsewhere – like RSS news and blog feeds, etc.
schmedley has:
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Are you a cyber nomad? Always on the move, jumping from one computer to another?
Are you one of the 500 million people across the world who access the internet each day from a cybercafe?
Are you tired of relying on laptops, USB keys and CD Roms to store, transport and share your files?
Are you one of the millions who either doesn't own or doesn't want to own a computer?
Do you email, chat, surf and share on a daily basis – but don't have a computer on which to organize your digital life?
Would you prefer that your files followed you wherever you went – and were only ever an internet connection away – rather than having to lug a laptop?
If you answered yes to any of the above questions, then you clearly need some jooce in your life.
Jooce is your very own, private online desktop – with public file sharing capabilities. A highly-secure, online space to keep, view, listen to – and instantly share with friends – all your files, photos, music and video.
By bundling all your chat and email accounts into one easy-to-use platform, jooce is your one-stop communications portal on the web.
What does this mean in plain language? It means that with a jooce account, no matter where you go in the world, no matter which computer you use to access the internet,your entire digital life is only ever a mouse click away.
By making every computer your computer, jooce promises to plug-in a whole new generation of mobile internet users.
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Your G.ho.st Virtual Computer (VC) is always:
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With Live Mesh, you can synchronize files with all of your devices, so you always have the latest versions handy. Access your files from any device or from the web, easily share them with others, and get notified whenever someone changes a file.Working on one computer, but need a program from another? No problem. Use Live Mesh to connect to your other computer and access its desktop as if you were sitting right in front of it.
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You're about to discover a new concept of Open Source web Operating System, where you can customize your system to fit exactly your needs. Discover today the new eyeOS 1.0 with new base applications, desktop, kernel, libraries and services!
You might have a Mac at home, a PC at work, and an iPhone or iPod touch. How do you keep
MobileMe works with the applications you know well. Microsoft Outlook on a PC. Mail, Address Book, and iCal on a Mac. Changes you make in these desktop applications are regularly synced with MobileMe.
Your desktop everywhere: Access and manage your email, contacts, calendar, photos, and files at me.com. All with feature-rich web apps so easy to use, you might prefer them to your desktop applications
Website:
http://www.apple.com/mobileme/
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