Hypothetically...would Sony losing gamers hurt developers?

New RAR metric decides what'll happen to third-party devs sans Sony - PS3 Fanboy

An even shorter summary of the hypothetical answer is:

If Sony bleeds a lot of marketshare, then EA and Activision would benefit by going Xbox 360, THQ wouldn't care, and Take-Two would be "crippled" by the loss.

Nick does bring up a good point that RPG publishers aren't covered. They do still make a difference, but it also shouldn't be ignored that the 360 is getting some solid RPG's to call its own.