PS3 has more theoretical power than the X360. But like Billionfold said, it's hard as shit to program for. Developers don't even know how to take full advantage of dual-core processors yet. It'll be another 10 years before they can optimize for the Cell's 8 cores. Like the PS2/Xbox, you won't see their true power until the next, next-gen systems are released in 5 years.