Subj : Re: GNU Public Licences Revisited (again) To : comp.programming From : Joe Butler Date : Tue Aug 23 2005 06:55 pm An useful clarification. I'd not realise this. But, if you are selling a £30 application, then any competitor that wants the source would simply purchase your app as a way to get many thousand's of hours worth of development work at a reduced price. The original GPL source doesn't count, because the authors choose to give it away for free. "Tatu Portin" wrote in message news:h8IOe.264$n72.49@read3.inet.fi... > Joe Butler wrote: > > So, what's the reasoning behind these licences that don't allow a commercial > > (closed source) apps from using them? > > > > In once sense, if the idea behind the GPL, etc. is to benefit others, this > > is a limitation that will reduce the number of people that can actually > > benefit from it. A closed source app is not going to open its source just > > so it can use some GPL. If the source was allowed to be used by all, > > without the restrictions on commercial apps, that would benefit a lot more > > people, wouldn't it? > > You can sell GPL'd apps. You just must provide the source code also. But > you aren't required to give the source to somebody that is not your > customer. Then, it's up to your customer to decide, whetever or not he > shares his app & source with others. .