"Farnell are now sold out of Raspberry Pis. RS want you to express interest; they'll start sending out to those on that list at end of week" - Quote from Raspberry Pi's twitter. That was as of 2:30AM Eastern Standard Time.
Good thing the first thing I did was express my interest.
Yeah apparently so, I could only get as far as their click here to pre-order and then nothing ... but I did the express your interest on RS, so hopefully that will be good enough.
EDIT: Now on Farnell they have the same register your interest as they did on RS.