Buy Pocket Stars PDA - ARM OTA $19.95 (as at Jan 2005)
Pocket Stars is a high accuracy star chart, ephemeris, and Celestial Navigation calculator for the Pocket PC. The ultimate portable astronomy tool.
Note that this version only supports ARM processors. This includes all PocketPC 2002 devices, all PocketPC Phone Edition devices, and all PocketPC 2000 devices with ARM processors (iPaq, Jornada 560, Dell Axim, O2XDA, etc.)
This "Over the Air" (OTA) version is designed to directly download to your PDA without requiring use of a PC.
