Socket Communications recently updated their Wi-Fi Companion software for Pocket PC 2003. This updated driver and utility for Windows Mobile 2003 is available as Socket Wi-Fi Companion version 2.5 A now.
Wi-Fi Companion adds new functions including find wireless networks, connect to favorite networks and manage power save modes to maximize battery life for the Windows Mobile device.
Also supports WPA on WM 2003 Second Edition as well as on some ROM updates to the original WM 2003.
For owners of a Socket W-LAN CF or SD-card, Wi-Fi Companion is available free of charge. All others (Wi-Fi Companion also supports build-in W-LAN Pocket PCs from Dell, HP, and ASUS) have to buy the Wi-Fi Companion "pack" for around 24.99 US$.
Cheers ~ Arne