I am too far from london, but the idea is interesting itself, also:
"just socialise and maybe have a fun night!"
I sense some "Physics behaviors" behind that <img src="smileys/smiley17.gif" border="0" align="middle" /> haha, I am such a pervert.
Anyway, great idea, and I agree the "Live streaming for the unfortunate?" thingy, even it'll be complex to do so (I should have made the behavior joke with that but.. well..)
EDIT: Remember, don't drive when drunk!