Tom over at The Small Wave got me to thinking about the PowerBook Duos again. I LOVED THE DUO!
I loved the Duos - so much that I wrote an ebook on them and sold them on eBay for two years. It's a great concept that i think Apple could take further - way further.
What if you had a box that was similar in size to a Mac Pro - with two full size 5.25" bays / a place for a 3.5" hard drive (or maybe a few places) and then two slots for two small 12 inchers, You could buy just the 12 incher or the dock seperately, but here's the kicker, you could dock two 12" inchers and get a quad processor super desktop system. I might mock something up like this and place it on my website.