I've seen the odd bit but haven't been too impressed by much tbh.
I saw Biffy Clyros set and the sound in general was absolutely awful, had to turn it off after about 10 minutes.
Saw a bit of a band called Mumford & Sons (I think), got bored after half a song and turned it off.
I don't like U2 or Coldplay so didn't watch those, saw a bit of an american R n' B singer whose name escapes me, wasn't bad but not really my thing. Chemical Brothers were on too and I caught a bit of it while flicking around. I really don't see the point of that sorta stuff at festivals (or in general :lol: ) as there's nothing to see on stage apart from 2 or 3 guys stood behind a computer in the middle of the stage.