yeah that sounds good...if the portfolio had some sort of a rigid structure you can use to make the screen standup...then a small foldable bluetooth keyboard and it could double as a laptop
and that same portfolio could be your kindle if it could simple change its screen to be the easy-on-your-eyes kindle screen with a press of a button or something
but, if you think about it a lot of times technology is out there but people won't spend the money to buy something like that. For example, Kindle costs $400, a digital tablet (paper one) will cost about $200, a convertible laptop (good one) will be about $1500...put all that together that's $2100, so something that we are imagining (all that plus ultra-thin, fast, small, long battery life) will probably be about $4000
I don't think many people would really pay for a device like that even though it would be incredible...oh well. (you could even add a phone radio in it w/ a caller-id bluetooth and it could be your phone and PDA too!)
but for now, we can dream, and through reading and writing on this post I think I have convinced myself to go with the digital pad, like a digimemo
....now only if somebody could help be decide between ToodleDo, Pocket Informant, RTM, & MLO for my GTD software implementation on my other post....