DSLR Controller (Beta) is a nifty little application that every Canon DLSR owners should get. Once connected to your Camera via USB, DSLR Controller will let you from your smartphone or tablet touchscreen change all setting you may need, control select your Focus Point and of course let you shoot photos and this without the needs of a PC or Mac (like other iPhone Apps). Just for this I may invest in an Android Smartphone and give my 5D MK II an even more "transportable" auxiliary display.
Akihabara News, Control your Canon DSLR from your Android Smartphone
