I was down at CPC's shop/warehouse in Preston this morning (part of Farnell - the other distributor) and they had small signs to the effect that "the Raspberry Pi is here.."
Not sure what that means in reality, but could be worth checking
edit - just checked the website and it says "next delivery 31st August"
However that doesn't say how big the queue is...
Raspberry Pi | Available from CPC | CPC