I’ve got one of those Belkin usb adapters. it is working (under both Windows and a Linux life cd, Mint, I’ve been trying out).
However it is not recognized under OpenSuse 11. That means, it shows up under hardware, I can commandline scan for networks, iwconfig and ipconfig detects it and so on, but it does not show up in yast and is not used anywhere. I can even ifconfig wlan0 up it and it even seems to be connected to a network.
But I cannot ping nor use any other tcpip protocol.