This is actually really good advice, my startup company already Cat-X's GPL code, I think I'll put Facebook's stuff on that list, too.
GPL code is FOSS but it protects the rights of the original authors. Apache, you sign away all rights and anyone can use , modify, even charge for your code.
If your startup used GPL'd code you have to follow their license requirements and that has some implications. TANSTAAFL
Biting the hand that feeds IT
