> I wonder how many PS3 game programmers ignore them completely?
I guess very few. I don't know much when it comes to current console games but I've been under the impression that games for the PS3 are about as demanding as games for the XBox360. Xenon's core is similar to Cell's*, but has three of them as well as improved AltiVec (VMX128). To make up for that I doubt you could leave the Cell's SPEs untouched.
