The new iPad makes a great photo studio. It has a 5MP autofocus camera, lets you adjust exposure separately (with a third party app like Camera+), has image stabilization and — like no other camera — has a huge range of editing apps to choose from and use right there in the field.
It is, however, very awkward to hold in one hand while you tap the screen with the other. You end up either almost dropping the thing, or taking a picture of your thumb, or just giving up.
I expect to see camera-friendly cases in the near future. Until then, though, I decided to hack together my own from a discarded iPad case from Speck. And amazingly, it turned out pretty well.