I spoke a store employee, Regent St Apple store still has a large line, and although it is smaller than yesterdays, the wait time is extremely long due to "o2's sign up system". The news on stock is that unlike CPW/o2 they do not anticipate running out at all. They will be receiving new stock every day by the truck load. However, they unofficially recommend waiting until late Monday/early Tuesday to show up if you want to get an iPhone without a significant amount of standing in line and waiting for activation. In short: forget about it until Monday, you're not getting an iPhone without a 10 hour wait wherever you go.