At least 32 MB

HP Ipaq H3955

The iPAQ 3635 features Compaq's color Pocket PC plus a CompactFlash expansion sleeve that allows you to add extra memory or optional modules such as a wireless modem. Compaq's iPAQ Pocket PC combines a real Intel processor, new hardware, and a sleek industrial design that fits in your hand to create a powerful and stylish PDA you can take anywhere. The iPAQ offers 32 MB of RAM and 16 MB of ROM--enough memory to hold a robust package of applications while leaving you a lot of room for your own applications. The color TFT screen produces 4,086 colors, and you can view the screen from many angles and in a variety of lighting situations. Other highlights of the Compaq iPAQ include a microphone and a speaker as well as an audio-in jack. It features an infrared port for wireless data... Less

Great starting PDA

HP iPAQ Pocket PC hx2190b Microsoft Windows Mobile 5.0 Premium Edition - PXA270 312 MHz - RAM: 64 MB - ROM: 192 MB 3.5 TFT - IrDA, Bluetooth