The Open Office guys have upgraded their already-comprehensive office suite. New features include improved screen appearance, further grammar checker integration, formula hints, improved sorting, and performance enhancements. Get it here. [OpenOffice via CrunchGear]
I don't know, I never got used to OO. It's probably because I used MS Office for so long, though, not necessarily that the programs are bad. When I first got the 7 beta on my machine, I tried to use OO for two weeks but my productivity fell pretty badly, so I decided to just install Office 2007 since I had a copy lying around anyway.