[rhplus]

The Mac mini is 7.7 x 7.7 x 1.4 inches. That's almost four times the volume of this thing (4 x 4 x ? inches).

http://www.apple.com/macmini/specs.html

[brightrhino]

The mac mini is also available with a quad core i7 and a hard drive. Cooling is already designed into the mac mini enclosure, which the article mentions has not been finalized in the version shown. I don't see this as much of an accomplishment.