Retro-tech

Just recently I got my hands on a HandSpring Visor Deluxe. This Palm OS handheld relic is the precursor to the Treo. I say relic, but the handheld still works - it uses AAA batteries so there is no rechargeable battery to wear out. The most interesting feature of all Handspring Visors was the springboard slot (see this article in the Wikipedia). This allowed the handheld to be expanded with peripherals like a GPS (which is why I got the Handspring), a backup module or "Memplug" memory expansion module. There is even a camera, a modem and a Wireless modem. One of the more interesting Springboard modules was the cellphone one. Slide it in and the Handheld was transformed into the first smartphone. Unfortunately the Handsprings were mainly bulky. the one which wasn't - the Visor Edge, allowed springboard modules to be attached via a sleeve. Handspring discontinued the Visor line in 2002 and brought out the first Treo. The rest, as they say, is history.