I agree with Craig re: upgrades. I've had my MBP for 14 months now, and it is still fast. I'd love an LED LCD and maybe a couple of SSD drives that I can stripe together; other than that, I am satisfied.

Stripped SSD drives, I like the way you think 
I agree with the blog you posted, for me the real kicker is the one port more than anything else, followed closely by the battery issue. I mentioned in the other thread the lack of extra ports means the MacBook seems more tempting over the Air, then the immediate slippery slope its into the 15" because it is not much heavier or larger. My tiBook was behaving strangely before I had to travel and I had to pick up a 17" MacBook Pro because at the time the 15" did not have FW800 and there were no ExpressCards out. It is heavy, but for extended trips it is nice to have. I have taken my 15" tiBook on trips, even after I bought the 17" MacBook Pro, when I was not concerned as much with power and wanted the smaller size. I think the 15" MacBook Pro would be my first choice for overall selection if I had to choose to have only one machine.
If there was a FW port on the MacBook Air, even if not a workhorse, for those trips where I am not going to be on the road for a long time and not using the MacBook Air for "real" - meaning no thought of editing video or photos passed looking to see what I got and what I should do differently. And the FW port is a big downside for both video and my FW card reader.
But with the airline restrictions, weight limits and the rest the Air is tempting. A USB Pen Drive to back up the system, a couple of those LaCie thin drives and I start smiling thinking about how easy it will be to carry. Now if I can only have the Nikonos made again in a digital format, I used to think carrying that and a strobe was alot 