i wasn't a source to the vertigo show i went to, so i don't know how people hold their phones. i do know you better make sure it's fully charged, as we had some people's phones cut off mid-song, then trying to call them back, it went straight to voicemailCool.
I could just see someone holding up thier cell phone during the middle of the show and have Bono yell "we haven't gotten to One yet!"
i wonder how good anything would sound through my phone i can't remember how blackberries sounded.