SAINT is a commercial application indeed.

SAINT
SAINT has provided BackTrack users with a functional version of SAINT, pending a free request for an IP range license through the SAINT website,...

Backtrack is open source, so I guess GPL would be the license as you already mentioned.

Why do you need to know? Just being curious ;)

Thank you very much to all the people involved! Downloading right now at a very acceptable speed :) Can't wait to fool around with this next version!

Obviously you're trying to break into someone else's AP (if it was yours you would know the IP address).

Funny to read you're able to break the WEP key but you're not able to find out the IP...

Nice one :) Thanks for pointing out this ebook!