Bill gates is spreading misinformation about GPL. From the article:
After one scientist asked if Gates would consider open source uses in health research, the man who built his $280 billion company on the power of intellectual property bristled.
"There's free software and then there’s open source," he suggested, noting that Microsoft gives away its software in developing countries. With open source software, on the other hand, "there is this thing called the GPL, which we disagree with."
Open source, he said, creates a license "so that nobody can ever improve the software," he claimed, bemoaning the squandered opportunity for jobs and business. (Yes, Linux fans, we're aware of how distorted this definition is.) He went back to the analogy of pharmaceuticals: "I think if you invent drugs, you should be able to charge for them," he said, adding with a shrug: "That may seem radical."