C was a maker of Palm OS-based Visor- and Treo-branded personal digital assistants. It was run by Jeff Hawkins, Donna Dubinsky, and Ed Colligan, the original inventors of the Palm Pilot and founders of Palm Computing, after they became unhappy with the direction in which 3Com was taking the Palm division. Handspring was founded in June 1998 and merged with Palm, Inc.'s hardware division in 2003 to form palmOne. The Treo 600 was the last product to use the Handspring name
Visor and Visor Deluxe
Handspring first introduced the Visor Solo, which was black and contained two megabytes of onboard memory. The Visor Deluxe had the option of translucent colored models, and had eight megabytes of onboard memory. Handspring Visor Deluxe Black The Visor and Visor Deluxe used Palm OS 3.1H running on a 16MHz or 20 MHz 68EZ328 Dragonball processor, a modified version of the OS from Palm that included an enhanced datebook, a city time graphical world clock, and an advanced calculator. Visor Prism
Handspring Visor Prism. When Handspring released the Visor Prism, it was flashlight-bright and the first Palm OS handheld to have a 16-bit color display (65,536 colors); the contemporary model (IIIc) produced by Palm only had an 8-bit color display (256 colors). Like Palm's IIIc, Prism's color screen turned nearly pitch black in sunlight. Prism's cobalt-blue-only case (and cradle, which required an attached AC charger, as USB cables could not supply power as they do today) was a departure for a PDA line known for a broad array of colored cases.
Handspring Visor Platinum. The Visor Platinum was similar to from shell color, the exterior of the devices were indistinguishable. The Visor Platinum was available only in a silver (platinum) or black colored shell, as opposed to the Visor Deluxe's many color choices. The difference between the Visor Deluxe's and Platinum's electronics was the Platinum included a 33-MHz Motorola DragonBall VZ processor while the Deluxe only supported a 16 or 20-MHz chip. Visor Edge
Handspring Visor Edge Red. Released in March 2001, the slim Visor Edge featured an MC68VZ328 DragonBall CPU clocked at 33 MHz. The 160×160-pixel, 4-bit grayscale (16 shades of gray) display was standard for most Palm PDAs. However, at the time it was the thinnest and lightest Visor, sizing in at 4.7" x 3.1" x 0.44" and weighing 4.8 ounces with the display measuring the same 2.25 inches square with diagonal span of 3.0 inches as other Visors. It was packed with 8 MB RAM and Handspring's latest version of the Palm OS, version 3.5.2H. Available in three colors, Metallic Blue, Metallic Silver, and Metallic Red, it was also eye catching. The built-in rechargeable Lithium-ion battery generally lasted two to four weeks on a charge
Handspring Visor Neo Blue .Released in September 2001, the Neo featured an MC68VZ328 DragonBall processor clocked at 33 MHz. It had 8 MB DRAM, an IrD A-compliant infrared interface, and Handspring's standard Springboard Expansion Slot. Neo sported a 160×160-pixel, 4-bit grayscale (16 shades of gray) display. The 4.8" × 3.0" × 0.7" unit, weighing in at 5.4 ounces, came in sleek, translucent Blue, Red, or Smoke-grey colored case. It used Handspring's modified version of the Palm OS, version 3.5.2H3. Power came from two AAA batteries that would last up to two months.
In 2002, Handspring ceased production of the Visor line, replacing it with a line of handhelds that were to be more "communication-centric" in nature; these would be sold under the name Treo. Except for one early model, all Treo devices were smartphones with integrated cellular phones, and nearly all featured built-in keyboards to enhance e-mail and SMS functionality. The Treo line met with suc cess, attributed in large part to Handspring's in-house VisorPhone software, which was tightly integrated with the Palm OS. The Springboard feature was no longer available...