After all the Venture Capitalist, investment companies and vultures are done you might get lucky and reg a few great ones. From rumor only I believe Google will be the one picking and choosing who gets what.
Where did you Pre reg if I may ask?
he's talking about the free forms many registrars have where you "express interest."
with these types of non-paid "pre-orders" you're expressing interest, which means you'll get an e-mail when the extension becomes available for pre-registration.