What we have:

– Framebuffer driver
– Serial driver
– Serial over USB driver
– Interrupts, MMU, clock, etc.

What we have in openiboot (but hasn’t been ported yet):

– Read-only support for the NAND

What we don’t have (yet!):

– Write support for the NAND
– Wireless networking
– Touchscreen
– Sound
– Accelerometer
– Baseband support