I'm not a NEM dev but I believe NEM hasn't been launched yet. Once the launch happens, it should be possible to receive real NEM coins. Did you buy NEMstakes from the NXT AE? During the redemption process, you should have generated a NEM address and private key pair which can be imported into the actual wallet once the blockchain goes live:



Source of image: http://forum.nemcoin.com/nem-news-alerts/nem-redemption-starts-now/

Not sure how BTT redemption works but I'd imagine it would work in a similar way? (i.e. you are given an address and private key)?

EDIT: Didn't see that patmast3r posted first.

EDIT 2: Oh, and just out of curiosity but does anyone know if the current NEM wallet can be used once the real NEM launches or will we be given another wallet to download?