The folks at Slim Devices have released their third Squeezebox music player: The device is a bridge between music stored on computers on the local network and a stereo system. The latest version sports 802.11g and can act as a wireless bridge for devices connected via its 100 Mbps Ethernet port. It's added lossless FLAC audio format support, as well as playing WMA files and streaming radio stations. The latest version also has both WPA and WPA2 support.
Unlike Roku's recently announced, but not yet shipping, SoundBridge Radio, the Squeezebox requires at least one computer on the network in order to play music, and it does not feature built-in speakers.