Q: So you are leaving the door open?
A: Hey, I'm flexible. Some people call it being indecisive, but personally, I think it's a sign of intelligence when a person is able to change his mind when circumstances change.
"If you're a mad scientist, you can use GPLv2'd software for your evil plans to take over the world ("Sharks with lasers on their heads!!"), and the GPLv2 just says that you have to give source code back. And that's OK by me. I like sharks with lasers.