Pros: Brilliant color display.
Cons: Difficult to see out doors and it is a little bit heavier.
The Visor Prism does have a beautiful color display. It does beat out the Palm IIIc and the 500 series. It can do anything the Deluxe or the Platinum can do but in color. The down-side is that it is difficult to see outdoors, however, you need to ask yourself, do you plan to use it outside? If yes then consider the palm 505, if not defiantly get the Prism. The only other thing you sacrifice is weight. It is heavier than other models, which is something you may or may not have to consider. It still has the great expiation capability and ease of use. I think it is a great buy that it has gone down in price. I now can enjoy a little game of solitaire or chess in color over than gray scale.