If I unlock something in the Battlefield Bad Company 2 demo, do I get to keep it when it comes out?

I have been playing the Battlefield Bad Company 2 Multiplayer Demo on xbox live. If I unlock something in the demo, do I get to keep it when the actual game comes out?|||No, but you can buy a special edition that comes with 6 free unclocks for no extra price.|||I'm afraid you'll have to start all over again, however they'll be more unlocks, more maps and more veachles and equipment to gain xp with :D|||naww. It won't work that way. :/