I inserted my prism2 card and did modprobe hostap and modprobe hostap_cs, and voila, wlan0 and wifi0 interfaces appeared
I have set up /etc/network/interfaces but ifconfig wlan0 up doesn't result in anything and the iwconfig command is missing
Meanwhile I can't figure out how to install more packages, I have usb networking up so I have been able to wget. I can't ssh or scp though. Not sure what the package manager is... not ipkg, apt-get, rpm?