Clearly they can go multi if they want.
But the way I look at it they have preferential treatment from Sony, have an engine and tools that (currently) are built from the ground up for PS3 console, and their current core ip's are all owned by Sony (so far as I know).
My conclusion, it's going to take a lot of momentum for them to decide to go multi-platform, unless they stay on track with the core stuff they have but use their new studio to built something multi-platform.
Try to be reasonable... its easier than you think...







