It is amazing how the GPL has inadvertently held up against newer technologies that they couldn't conceive of or just didn't think were a big issue at the time.

It is amazing how the GPL has inadvertently held up against newer technologies that they couldn't conceive of or just didn't think were a big issue at the time. Also, you can make propitiatory changes if it is contained within the business. Once you make them public is when there is an issue. But I doubt folks would be wanting to keep patching in their proprietary stuff with every new Linux kernel for instance.