Concept: iPad Split Keyboard
It seems like the iPad’s keyboard, in landscape mode, leaves you no choice but to hold the device in one hand and hunt-n-peck with the other. What if the keyboard was split into two, and placed in the lower-right and left corners? Then, you could hold it with both hands, and type a la the iPhone.
It’d be a sacrifice to the key size, for sure, but it might be more comfortable and functional.