Functionally, having this feature on the 360 would be pretty cool. I have more reason to leave my 360 on 24/7 than my PS3 thanks to Xbox Live. While the 360 CPU probably couldn't keep up with the Cell, it could probably outperform most PCs while performing the same PC-centric calculations (unlike the PS3). If MS wanted to show off their FLOPS generating power, the 360 GPU would probably run Cell into the ground, though it would be performing even more specialized calculations. But we'd loose the spiffy visualization.
Anyway, it's pretty irrelevant since the noise of a 24/7 360 would be intolerable. Also, I wouldn't fold on a 360 for fear, nay, impending certainty that it would red light every week.