It seems that 2.2 locks google talk into the first google account you sign up with. I thought on 2.1 I could sign in to the account I wanted to use, however it appears that's not the case now. I use gmail (for google checkout) however my main "google" account is an apps account. So I believe for the market to be associated correctly with my gmail account, that one needs to be created first. Any way to get google talk to use my apps account, or any way to play with the accounts (create, clear/remove, re-add) to get them setup so the market works with my gmail account but gtalk uses my apps account? Hope this makes sense.