are some of the coolest pieces of technology I've seen around. Thier MICRO-ITX 12x12cm (Not the Mini-ITX, though those are like 17x17cm) board is about 2/3rds as long as a dollar bill on all 4 sides. Pull out a dollar and fold it so 2/3rds is showing. VIA has a mainboard with integrated processor, video, usb, everything! that is that size! So kick ass.
I saw that picture of the ITX cluster as well. You could run a OpenMosix cluster (far different from the SETI and proteing folding clusters, see http://www.linuxquestions.org/questi...42#post1391042
for a better description.) But these ITX boards are not workhorses. They're small, and really cool, and range from a 400mhz to a 1.3mhz (the VIA embedded ones, I've seen MINI-ITX with socket 478 for modern Intel CPU's (northwood and prescott) though I would love to see someone stick an extreme edition in one, just for the fun of it. LOL! Though even a prescott will be limited by the small FSB and lack of PC 3200 ram support.
Clusteting these for gaming is not impossible but it won't work. First, games aren't written for clusters. The code has to be parallalized. (I suspect we will have a parallalized game some day.) Nor will a OpenMosix-type cluster help you at all, unless you are multi-tasking, see the above link.
Just buy a bitching system. =)