What is the fine-grained topic of the following text: Bill adds that what happened with Sendmail and TCP/IP couldn't have happened under the GPL; we could at this juncture conjure with the notion that not being able to swipe things and run off with them would inconvenience certain large commerical developers greatly, but on reflection we fear we'd better not. Only return the topic.
The impact of GPL (General Public License) on commercial developers as compared to Sendmail and TCP/IP usage.