Buddy of mine has Xplane on his iphone. It flys by tilting the phone like you would a yoke with a heads up display and has touch areas for power, flaps and gear.
I'm short on the Memory but my phone is about 3 year old technology. I do have a 4GB micro SD card that is the size of my fingernail. I think its interesting to look at it and realize that I have over 1000 songs, some videos and various excel and word files on there.