Real Deal Slots, Mahjong and Friends and AW Sudoku. Planning on loading Contract Killer, Pente, Go, Mahjong Artifacts, Mahjong Artifacts Chapter 2, Mystery of the Crystal Portal, Doodle God, and Paranormal Agency.
My 10yo daughter is enjoying Osmos and Space Chem, and is blowing through hidden object and puzzle games (like Secret of the Crystal Portal and Where's My Water) like nobody's business. She has to remain mostly immobile with a broken leg and us getting about quadruple her normal game time.
My 8yo daughter likes Tap Dragon Park, Tiny Farm, and Inotia 3 and 4.
Games? I would not SULLY the pristine computery-ness of the Nexus 7 with mere games!
Oh, wait. I totally would do that Dead Trigger looks good but is freakin' frustrating to control. I love FPS, but the touch screen interface seems overly complex. Oscura is beautiful and a fun game, if a bit simple minded. Of course Angry Birds is on there but can barely hold my attention. Osmos is wonderful and fascinating, but it seems like it would be better if you were tripping. I still have a good time with it. Mahjong Premium - I love this one.