Mostly BFBC2 which was the Games with Gold giveaway at the start of the month. Played it before on PC but thought I'd check out the 360 version and have enjoyed it for the most part, even though I usually hate playing FPSs with a controller.
Also, whilst babysitting my niece the other evening, I bought her Minecraft PE and was so impressed with it I bought myself a copy so that's been getting some play on my phone/tablet.