I've found this cool tool for RFID reading/writing which I think should be part of BT. You guys have a section for RFID but no tools yet.
The program is called RFDump
I can't initialize my reader with rfdump
It's an ACR120U (h**p://***.acs.com.hk/acr120.php)
settings is /dev/ttyUSB0
I have install the official driver but i don't know if it works on backtrack or if I have to change something to make it work
It's recomended for fedora core 5
If some one can help me ...
PS : if some people are interested by RFID take a look at RFIDIOT