ATTENTION: ALL INTERESTED IN NBA 2K13.
I just happen to feel like reading the purchase info on PSN for the preorder games, because I had a feeling. Anyway, 2K13 is the only pre-order game so far that specifically says this.
"One-time license fee for downloads to up to 2 consoles systems that are associated with the purchasing account. No more than one activated PS3 system within a 24 hour period. Content may not be used by any other account. You must sign into PSN each tie you start the game."
Translation: No game-sharing 2K.
Wow, great catch on this one.