Linked by Eugenia Loli on Sun 17th Jun 2007 23:52 UTC
"For the purpose of this article, just like the first one, a WebOS is defined as virtual operating system that runs in a web browser environement. Don't like WebOS? Well, call it OnlineOS, or WebTop if you like. So, here is a review of another 10 functional WebOS', as well as some additional similar services which show promise but aren't launched or fully realized yet." More here.