i-mate JAM
A gem in both scale and value, the i-mate JAM ($640 street, as low as $540 with contract) is the world's smallest Pocket PC PDA/phone. It's also the only Pocket PC phone that feels truly comfortable in the hand, making it a good (if expensive) choice for folks who desire a phone that runs Microsoft's OS. Its lack of high-speed networking, though, makes it a poor choice for those who also need on-the-run Internet access.
