Boycott GPL
Jd points out this article about the Free Software Foundation threatening Cisco over the use of GPL code inside their routers. I know Microsoft has softened their position on open source software lately, but I really can't stress enough how lame the GPL license is (even “viral“ as someone once said). The thing was designed by a bunch of communist hackers that think that you should never own the rights to the source code you create. As such, merely including GPL code in any product means that you must make your entire product's source code available to the world. There are plenty of decent open source licenses and GPL definately isn't one of them. The truth is that using GPL'd code isn't free at all, you will pay if you use it. Think of it this way, you lose out on product sales in the same way you would lose out due to piracy of your app, only because you used GPL, it is perfectly legal. If Valve had used GPL'd code in HalfLife 2, they wouldn't have had to worry about someone breaking in and stealing their source code, because they would have had to give it away for free anyway.