Actually, your avatar got me to thinking about the Mac Mini and how it might follow in the footsteps of the MP. Just think of how much smaller the Mini could get if they took out the hard drive and incorporated the SSD into the logic board. Then give it the cylinder format and the transformation is complete! A Mac Mini the size and shape of a coffee cup that can run an i7 at full load with virtually no fan noise!
(may not be your thing, but it sounds great to me)