WiFi fail.

While using my MBP away from home, the wifi crapped out. It showed a list of available signals, then suddenly changed to 'not configured'. Several reboots later, even here at home it won't see any signals at all.

I've done the trouble shooting assistant, but it merely returns 'Fail' messages under airport, etc. Direct ethernet is still fine.

Any advice? Did my WiFi card just commit seppuku?