I can see the obvious differences in the design and memory requirements, but I want to know about the nitty gritty. I have a Pronto 2MB unit now and the thing that I felt was missing was a control joystick in hardware buttons. Then I saw the NEO. Now I am wondering if I should sell the Pronto to get the Neo, I am using about 180K of memory on my Pronto now, so I am not worried about the memory on the Neo, but I am concerned about the some of the other issues brought up here. I know some have been addressed and some haven't with new firmware and software. I am wondering what I would lose if I "downgraded" to the Neo. What do you experts feel?