The Haystack project at M.I.T., nice looking GUI:
A universal information client, a spaces competitor, written using Eclipse's SWT. The open question, will this be released as open source?
This does look pretty interesting, particularly the use of SWT. Though it does remind me a little of a portal and I've never much been a fan of portals. Having said all that - I do think its time to move beyond the web browser to provide UIs capable of managing the heaps of information we're bombared to each day now.