Godammit, put it back on Playstation where the Legends game belong, not on some shoddy Nintendo handheld.
Putting it on anything else but perhaps the Wii would probably have meant ridiculous development costs and almost a guaranteed commercial failure.
Besides, the chances of it not receiving a PSP2 port later on seems highly unlikely. Plus, the game looks amazing based on that trailer and screenshots at the source. Looks significantly better than MML2 in just about every way.