"In addition to having Rhapsody and Napster connectivity, the new Denon iPod docks provide Windows 7 connectivity and overall faster networking capabilities. Notably, the ASD-51W adds Wi-Fi (11b/g) connectivity and WPS compatibility (Wi-Fi protected setup). This easy solution for wireless connectivity allows users to quickly connect the ASD-51W to the wireless router and automatically start communication and authentications without having to enter any password or SSID input." - Alan Cheslow from Bookmarklet