Browser based OS's or web desktops are infinitely useful tools, which is partly why the competition in that field is tough. You've got to come up with a suite of apps to replace or ape those of your regular desktop OS. Newcomer Zimdesk touts itself as the 'utimate WebOS'. While it may not outdo the major contenders, Zimdesk has come up with a fairly comprehensive set of tools to rival the best webtops out there. It's got a complete range of office apps—zimWrite, zimSheet, zimMail, and Zimcalc. There are games for after work fun (Hockey, Missile 3D, Stunt Bike are few you can try out). The Zim Manager allows users to find and organize files, set permissions, and compress files. There's a Zim Earth map, as well as an IM service which can be used for videoconferencing. You've got media too—radio, video, and TV. The sidebar indicates the time, storage space used, and it tells you if you've got any new mail. Zimdesk is free, however there is a Zimdeskpro version with more business apps available for a fee.