Well, I guess I need to admit I was too harsh regarding progress at Live.com during today's show. The site now works in every way with Firefox, both on Windows and Linux! No longer do I see the little warning box saying support is on the way and it works right!
Click on the "what's new" link at the upper left of the home page. Up comes a very interesting list of what either is or will be available soon. They've obviously put a lot more thought into things than I accused them of. The OneCare and Office Live look good and I'm sure they'll evolve to be more attractive still.