Mordacain
Formerly 1-watt brigadier
Based on the link provided in the OP, I don't know what to think.
I'll probably buy one when my current 360 kicks the bucket again. I just hope these are a little more resilient out of the box. I'm already getting RRoD nightmares.
Given the hardware being basic x86-64 based I seriously doubt they'll have the same teething problems that the original 360's and PS3s had. They already resolved the overheating issues in the last few iterations of the 360, and the new architecture should be a much smaller fabrication on both CPU/GPU so I imagine their experience will bear out and their cooling design will be sufficient this time around.
Odd that there is no backwards compatibility with the original xbox though, since that also used off the shelf x86 based hardware.