Here's my concern: my iOS game runs the iPhone at a nice warm temperature. At the retina resolution, either frame rate will drop or the iPad will get hot. It

Here's my concern: my iOS game runs the iPhone at a nice warm temperature. At the retina resolution, either frame rate will drop or the iPad will get hot. It will need horsepower, but if doesn't get the horsepower, it might just run slower. It's hard to say. 256MB of RAM is fine for most types of games.