Thanks for the link, they have certainly made some leaps with hardware. Back in those days it was quite something to have DOS compatibility, the Portfolio was probably the first palmtop to have that.
I was watching Terminator 2 the other day and noticed the character John Connor using a small piece of Atari hardware to work out the pin no. for a stolen credit card and steal cash. It looked interesting so I went to the Atari museum website and found out it was their palmtop computer the Portfolio...