See 'WikiDevi' @ the Internet Archive (MW XML, Files, Images)
upgraded MW to 1.30 - maybe things are slightly less broken
CLEAR Modem with Wi-Fi (WIXFBR-117)
For a list of all currently documented Ralink chipsets with specifications, see Ralink.
BCSB5200-3 + BCSR200 WiMAX chipset (BCS5250)
According to Nintendo's Router Database, the device assumes the SSID of 'WiFiRSU_XX' where 'XX' is the last two digits of the ( MAC address.
It is also said that the default WiFi password is the last eight digits of the MAC address.