AirPort 4.1 Software Released
Apple released AirPort 4.1 software today. The update include AirPort Express 6.1 firmware and AirPort Extreme Base Station 5.5 firmware. The update allows you to use WPA (Wi-Fi Protected Access) security over a network that's wirelessly bridged using Wireless Distribution System (WDS). This was a major complaint for people who wanted to use better security for their entire network. You can now also rename USB printers attached to a base station; this changes its Rendezvous name for network discovery. And support for Keyspan's remote control device is now included.
Update: I've written up an extensive run-down of the update for MacWorld.com/MacCentral. You can read that story here.