You'll get brilliant performance and speed with the HP5150 PDA. It features the Microsoft Pocket PC 2003 Premium Edition OS, an Intel XScale technology-based processor, 64MB RAM and 32MB ROM for power applications and personal entertainment. The HP iPAQ Pocket PC h5150 builds upon the legendary iPAQ style, innovation and impressive expansion capabilities in a power-packed handheld for mobile professionals. This model includes integrated Bluetooth for wireless communication with other Bluetooth devices, and with its integrated SD slot and backward compatibility with expansion packs, there's greater flexibility in storage and expansion. You can add an optional WLAN 802.11b card for even greater wireless freedom.