Bah, with all the comments on overpacking, I was expecting to go to his blog and see him hauling a u-haul with his bike! Ultralight is nice for some, but I know I prefer to have several days of clothing, a tent I can spend a rainy day in without going bonkers, a very warm sleeping bag, spare blanket, laptop, kindle, a few book I can't get on the kindle, heavy duty raingear, a pair of hiking boots, and room to stock up on food before areas without much service.
8mph was on the high end of my daily average on a good day and I walked up a lot of hills, but I enjoyed myself.