Well, I'm *hoping* I get the Nexus 10 for my birthday/Christmas present, so I don't have it. But I can tell you some games I downloaded to my phone for a trip to Europe with my kids so we could play together during boring wait times and rides:
FourInALine (connect 4)
Mancala Mix Free
You can look up card and board games that you normally like in real life and see if there's an app version for it.