I had a 2011 MBP and I just purchased the new RMBP. I used the startup migration assistant to port all my data, easy.
But I'm getting weird issues, when I opened programs for the first time I was prompted to put in my password.
Now, I am unable to update my apps (so far IMovie and IPhoto) through the mac app store, I get this error:
I only have one account and I am logged in to that account.
I've followed the instructions regarding repairing disk permissions and re-indexing spotlight found here