Wouldn't it be feasible to mount these chips on some ASICMiner Block Eruptor-like USB Stick?
Power downsumption should be manageable (< 15watts!?) heat dissipation... maybe?
Perhaps but there's currently a lot of "larger" support chips required in the BFL design to manage communication and queueing with all 16 engines. These could probably be designed down or out if only using one chip. The current spec doesn't even come close to using all the pin outse.