A little story...

Once upon a time, there was a programmer.
He bought a book which described an interesting application framework. He read the book, pored through the source it contained, and saw much potential for development in his company. He downloaded the source code from the book's web-site.
He read the license. He screamed. The entire thing is GPL. The book had no mention of this potential "issue".
He mailed the authors of the code. A non-GPL version is available. For $6000.
He's .
If he'd known the source covered in the book was GPL he wouldn't have wasted his &!%$ing time with it. What good is a book discussing application architecture and covering code when you can't use that code.
Rant ends.
He bought a book which described an interesting application framework. He read the book, pored through the source it contained, and saw much potential for development in his company. He downloaded the source code from the book's web-site.
He read the license. He screamed. The entire thing is GPL. The book had no mention of this potential "issue".
He mailed the authors of the code. A non-GPL version is available. For $6000.
He's .
If he'd known the source covered in the book was GPL he wouldn't have wasted his &!%$ing time with it. What good is a book discussing application architecture and covering code when you can't use that code.
Rant ends.