Dell Future PDA smartest phone
Dell PDA transformed into the Star Trek Tricorder complete with built in sensors.
Radar, Sonar, Barometer, Microscope, Binoculars, Sonic Flashlight (mobile sonogram) FLIR (forward looking infrared radar), AM/FM Radio, Television, Geology Spectrum Analyzer, Flashlight, Night Vision Starlight Scope, Electromagnetic Spectrum Analyzer, Chemical Composition Analyzer, Wind meter, Thermometer, Altimeter, audio recorder, video recorder, short range CB 2 way radio, cell phone and satellite phone. No field scientist equipment list would ever be complete without this.
There is some precedence for this with this solar powered Casio watch with Altimeter, Barometer, Thermometer, Digital Compass, sunrise and sunset data. http://www.casio.com/products/Watches/PRO_TREK/PAG240B-2/
MC108 Digital Mini Microscope http://www.extech.com/instruments/product.asp?catid=77&prodid=522
Arm computers are a primary resource in modern games like Fallout with the pipboy 3000 see this video for the start of a real world working pibboy 3000 arm computer http://www.youtube.com/watch?v=5tCEXEuICWs
Expandability. The great thing about the Dell PDAs is they had multiple ports for various memory cards, which were also used for expansion slots to GPS cards, FM radio, Encyclopedia Britannica SD card.
Expectations. Our youth are starting to expect a different future than we grew up with. They expect more portable computing tools and communications waterproofed to take anywhere so they can always be connected. The screen also has to be large 5 inch for increased readability. This is why an arm computer is a better option than a wrist pda http://wristpda.beiks.com/