Where would the artists be before and after their sets? Do they have somewhere to watch the show from? Somewhere to get dressed and so on? Would they be milling about, chatting to each other?
How much security would there be? I imagine it would be quite tight with so many celebrities around.
Where do the press come into all this? Where would they be and who would they be talking to? I've got a fair idea what BBC Radio were up to at Live 8 from photographs, but anything else would be useful.