Palm IIIx (1999)
Manufacturer: 3Com | Year: 1999 | Width: 81 mm | Height: 119 mm | Depth: 18 mm | Weight: 170 g
Palm OS: 3.1 - 4.1
CPU: Motorola DragonBall EZ | CPU-Clock: 16 MHZ | RAM: 4 MB
Display: 160x160 Greyscale (16 Shades) | Battery: 2x AAA battery (removable)
Next to the Newton OMP, this PDA is my absolute favorite. This is because I have used it the most myself. Together with the Kodak PalmPix it was my first digital camera and in connection with the Siemens S 25 I could read my mails mobile.
I took notes on it during my training, which was really not common at that time.
If I could use only one device, it would be a Palm IIIx.