>>That's a fair point about typing on an iPad. It's an ideal device for someone with three hands ;-)

Yes- absolutely lovely as long as you're just showing off. ;-) Compared to the iPhone- I saw a woman on a plane one-finger-typing at astonishing speed into her iPhone and now there are 4" and 5" Android devices allowing typing with thumbs like traditional texting or hold and jab. E.g. the Dell Streak is a 5" pad/phone. Seems to me that "big phones" is the direction the market will be going.

FWIW, for over a year in Japan they've had bluetooth keyboard/screen stations that turn into your personal workspace when you approach, so a current 3.5" device can turn into a full PC if you need it. Maybe we'll see those stations replacing the banks of payphones that used to characterize train stations and airports. ;-)

Re market acceptance: Apart from the 10M iPads/year, Apple is selling 4M iPhones/month and Android phones are 4.5M/month rising quickly. If the trends continue, mobile device sales will be in the hundreds of millions by next year. Once the network providers start offering free apps and/or promoting useful stuff to encourage use of mobile broadband, people will start to wonder why they ever tolerated hulking PCs whose OS is on a fragile hard drive etc etc. Print and send services are a good example IMHO: work on a presentation on the train, then simply click to have 10 copies bound and delivered anywhere you want within the hour.