>> This might seem like seem like nit-picking, but I can take your GPL project, work on it and sell it to a dozen companies, and you have no right to my modific

>> This might seem like seem like nit-picking, but I can take your GPL project, work on it and sell it to a dozen companies, and you have no right to my modifications. The companies I've sold to could give you a copy if they wanted. But your rights aren't omnipresent. It's even worse than that. You can sell the software without distribution modifications to the client. You only need to give modifications if the client ask for them. There is no interest for the client to request unless they want to break off from the software contract. If you're found to violate the GPL, the client will be unable to use the software, they have more to loose than you.