Well I have written about a few of the "cloud" type Web OS tools out there including G.ho.st and Windows Live Mesh to name a few but today I would like to tell you about AjaxWindows. AjaxWindows is a project funded by Michael Robertson of MP3.com, Linspire(aka Lindows) and Mp3tunes.com fame. AjaxWindows is an online full desktop that includes word processor, email client, IP telephony with an app called Gizmocall, instant messaging and more. Ajax Windows is best run under Firefox but can be run under Internet Explorer once an active X control is installed.
ajaxWindows does not contain a built in browser, rather it uses an application launcher to use your local machines browser. This makes sense because you can't use the program in the first place if you haven't got a browser installed on your computer.
The site uses something called SyncWizard which will help you Sync your files and mobile phone, pda and even your Amazon Kindle info up to your online ajaxWindows desktop.
You can sign up for an account at the below URL:
Here is a demo video of Ajax Windows.