Originally Posted by Atomic Skull
Illegal where? In the US yes thanks to the DMCA, but elsewhere it's not because reverse engineering is still legal most places outside the US if you're careful about how you go about doing it.
I don't personally care what the law is in foreign countries. I care what it is for me. Sometimes it affects my decision, sometimes it doesn't, but it's always a good idea to know what the law is, so if you decide to break it, you're doing it on purpose.