RichiP asks: "My memory is so poor I forget friends' birthdays and appointments I made a day ago. I sometimes have an idea I want to jot down but that I end up forgetting when I finally come upon pen & paper. To help myself, I was thinking of purchasing one of those integrated PDA and cellphone devices (first the Handspring Treo then another by Samsung), but I've always felt that these devices were still far from ideal. I was wondering if the Slashdot community would share their wishlist of features for what they believe would be the ideal Personal Digital Assistant. Features for input, processing and output are all welcome. Perhaps the device I want may be years from becoming commercial. Given the right ideas from input from others, I might be able to come up with my own device or start an open project geared towards it." Even if you do feel that PDAs have a limited lifespan, if you had a chance to add a feature to a PDA (especially if you felt it would increase the lifespan of the PDA), what would it be?