Hi, i have 2 questions so if anyone knows anything please let me know I'm still new to smartphones just got my galaxy SII yesterday and I'm quite pleased with it!

1. Is it possible to listen to youtube while doing something else on the phone?
2. I'm deaf on my right ear so i was wondering is there any app or an option on galaxy sII that would make it possible to play mp3 in mono (really don't wanna convert all of my songs to mono :P)

Thanks in advance!