Pretty cool stuff. I've got to say, it always kind of surprises me that Apple doesn't get more praise for their power adapters. Apple just seems to be light years ahead of the competition when it comes to power adapters; my Sony Vaio came with a fairly bulky power adapter with big thick cords (with some velcro strips to tie them up) and it was always a tangled mess and a pain in the ass to carry around. It's like, hey, great Sony, you make a really slick thin 3.7 pounds SZ laptop, but you have this ugly unwieldy brick to go along with it.
By comparison, I just love how the MB and MBP power adapters are so compact, have the prongs built into the brick itself, and have fold-out wings to wrap the comparitively thin cable around.
It seems like such a small thing, but when you do think of it as an important part of what you carry with you when you have a laptop, it really amazes me that other companies don't seem to try and follow Apple on this front.