IBM's Simon predates the term "smartphone" (it was coined by Ericsson's GS88 prototype), but it's widely considered the first true smartphone. And Big Blue's mobile device was BIG -- the comically (by today's standards) large mobile phone-PDA combination stretched 8 inches long and featured a 4.5-inch black-and-white touchscreen display (yes, a touchscreen!). Additionally, the device ran familiar applications: email, calendar, address book, calculator, note pad and a stylus input for handwritten notes. The Simon was first introduced at 1992's Comdex, but with a whopping price tag of $899 and a target audience that hadn't fully embraced the laptop computer, IBM's smartphone failed to take off. But it certainly set the stage for future innovation.
Dimensions: 8 inches by 2.5 inches by 1.5 inches thick