Capcom wants to kill the Vita confirmed - EX Troopers announced as Lost Planet spin-off for 3DS, PS3

[Soundwave]

homer said:
Why would you only release on those two platforms? Who proposed this and who accepted it?

The game is aimed for the Japanese audience and the 3DS and PS3 are the most active userbases in Japan (assuming the PSP continues to decline). 

I don't see it being that unusual.