If you have any sense you won't even consider using the "air" as your only computer .. 😱
Hey, I've lived on three TZs and was the first one to own one in the U.S. on June 13 and speaking from experience:
1. SSDs materially speed up use of a 1.2 computer to the point of being comparable to a 2.2 CPU.
2. I couldn't live with just a 32GB SSD, but I've learned to reduce my frequently used files size down to 30GB so I can live permanently in the MBA's 64GB space *with* an XP partition, which requires at least 5GB of space.
3. While the TZ's footprint is clearly preferable from a traveler's standpoint (I travel 40 weeks per year), I will take the MBA until Jobs recants on this strategy and will try to fly business class as much as possible.
😛
4. The MBA is designed for a new world. Combined with Time Capsule, I will be able to wirelessly share my MBA with my archived files and the TZ, which I plan to keep.
5. As someone who has to travel with two laptops most of the time, let me tell you: *every single ounce counts.*
6. I carry a lot of stuff with me on trips as a speaker to make sure I'm "failsafe," so a 320GB Western Digital Passport is definitely part of the package, although I plan to leave the SuperDrive at home and just bring the Ethernet dongle in my suitcase.
😎