For a long time, I never thought the iPhone would really become viable as a gaming console.  I also thought that a touch screen would not (and could not) effectively replace the beloved gamepad as a preferred method of input for portable games, whether they be strategy, RPG, action, or otherwise. 

The massively exploding popularity of the App Store and the amount of games being sold boggles the mind.  I was skeptical for a while, continuing to lovingly caress my Nintendo DS (and recently, my PSP) until I discovered that some truly fantastic games were waiting for me to enjoy, right on my iPrecious.