AOL also have free streaming of the London, Philly and Toronto gigs (complete with handy links direct to the individual Pink Floyd numbers):

http://music.channel.aol.com/live_8_concert/london_philly_toronto

It uses their own ActiveX based player, so not much hope of saving the stream or working on anything but Windows I guess ?

I didn't see Pink Floyd live on the day, they have still got it haven't they