For the next version of Backtrack consider using Ubuntu 10.04 Lucid Lynx LTS Version as the base.

The advantage for the developer is a base that will be supported for three years on the desktop. Backtrack Desktop users will be able to use Ubuntu and Backports for other software so they have up to date productivity and recreation tools in addition to Backtrack's state of the art security software.

Intrepid is a bit long in the tooth.