Hey - Thanks for the words of wisdom.
I went today, hoping for something awesome to happen, but that was me being too optimistic.
Went to both Covent Garden and Regent Street at 1pm and they both said no to both the 16GB and 32GB iPhone 4's.
I think I went a little too late as they said they had some this morning.
So i've just ordered a 32GB one online just now, I'd rather know its coming, rather than getting excited about the prospect of getting one through a walk in.
Thanks for your help (Y)
3 weeks shipping..I hope it will come earlier.