My start in the game industry was mobile development, and often that is what I fall back on. My primary mobile game is "UpJump". You can find it on the google store at Google store
I took it as a challenge last year to create a small mobile game from conception to launch. It was a chance to play around with Google Ads (and make them un-intrusive) and prove to myself that I can take a break from my larger works to get something to market.
My next steps are to add more analytics, a leaderboard, and port it to the iPhone; which I'll get to at some point.
It is a fun little game, go check it out!