This afternoon I finally gave in and bought an iPad 2. Perhaps "gave in" is not quite the right term for my feelings about the purchase, but still.... It's my gift to myself for winning a contract for the contemplative computing book, so I partly justify it on the grounds that I'll be able to write with it.
I have high hopes that I can leave my laptop at home more often, and take this and a Bluetooth keyboard when I go travelling, to the library, etc.. That won't always be the case; in fact, I suspect that the relationship between my MacBook and the iPad will be like the relationship between my car and bike. I need the car for certain kinds of tasks, but I can substitute the bike for shorter trips and if I think out my day completely enough; a large technology is really a hedge against having to think too much.
Anyway, the Bluetooth keyboard works like a charm, and I have high hopes that I'll be able to make this relationship work.