Yes, the used modified G5's that were around %20 of the power if even that (I THINK, been awhile since I read the alpha specs)- Anyhow, thing about FP is that it can be substantially different depending on what they are calculating. Thats why you can NOT judge a console via its floating point. The only true way is via benchmarking and by advanced simulation (thats how they were able to benchmark the PS3 and XBox360, via advanced simulation software). By the way, this software if VERY accurate however, it is accurate in the normal PC type architecture. Since the architecture is so different on both the PS3 AND the XBox 360 it's all in the air as of now. Now, PC compared to them? No contest, the next generation consoles will dominate for awhile. Okay, before all the PC lovers get onto me about this (I to do a majority of my gaming via PC), note I said for AWHILE. Eventually, as always happens, the PC market will cath up and surpass the console market. However, with this current console generation I wouldn't look at it happening as quickly as it usually does and eventually the console life span will eventually equal that of the PC where its hardware will infact be good for 5 years.
It's weird how the new XBox is based off of Mac architecture. Although they are very different entities (VERY different on the end product) it is still born with the idea of the PowerPC roots.