Yes, the time has come again – for a new kernel, and a new release of BackTrack. Codenamed “Nemesis”. This release is our finest release as of yet with faster Desktop responsiveness, better hardware support, broader wireless card support, streamlined work environment

BT4-rc-2 Download
http://www.backtrack-linux.org/downloads/

also check out the new Bt wiki it rocks

http://www.backtrack-linux.org/wiki/index.php/Main_Page