Plants Vs Zombies
I loved Plants Vs Zombies on my PC. LOVED it. I don't get excited by games much anymore but Plants Vs Zombies by PopCap captured my full attention for weeks when it just came out a couple of years back. A version for the iPhone came out later and enjoyed similar success to the original game. PopCap's Android page, however, has been quite empty. Literally:
Will PopCap ever release an Android variant?