maybe not to upset 360 fans or Microsoft... (often publishers task developers to port as cheaply as possible, but also to provide a similar experience across consoles).
Red Alert 3 on the PS3 is tagged as the 'Ultimate edition'! It should have to justify this tag line! No reason not to include Keyboard and Mouse support on the grounds of wanting a similar experience across consoles - this game is over 6 months later than the 360 version and flipping well should be a better game with better features!!! This smacks of laziness and lack of forward thinking! If I was Sony I'd have paid them extra to add this functionality!
_________________ "Art challenges technology. Technology inspires the art." John Lasseter, Co-Founder of Pixar Animation Studios