The developers of Bootlace, the OpeniBoot based Android installer for iPhone 2G and iPhone 3G are working their butts' off for porting Android to the iPhone 4 and iPad.
If your not aware of OpeniBoot, it's an open source implementation of the iBoot bootloader found in iOS devices. It enables booting of unsigned codes such as Linux kernals. OpeniBoot is very useful for booting and using Linux based kernals such as Android on iOS devices as it preps up the device for the linux kernal to take control.
