I'm looking for a good coder's device to experiment with graphics programming. I'm sure a lot of you must have favorites. It'd be a great help if we can compile a list of these devices.
Just to be clear, I'm interested in devices which are easy to hack. There are good devices like the iPhone, for example, but you can't use a custom WebKit build with it to test WebGL.
So, what are some good 'coder's mobile device's?