Polley's design is easily the best. Cubezilla sounds good in principle but would, I think, actually be kind of annoying in the same way that Mac Spaces are also kind of annoying. That said, I'm not hugely convinced that tabs are a problem that needs solving. I'd be interested to see a prototype of Polley's ideas done as an add-on though. - Tadhg Kelly from FriendFeed MT Plugin