http://www.gentee.com/index.htm
Gentee has GPL-incompatible, Open Source, non-copyleft licence. But from version 3.6.1 Gentee changes license to MIT. The license became GPL-compatible.This is because I'm persuaded the author to change license to GPL-compatible. I was tried to persuade him to use GPL, but this was useless.
How are you think, was this a smart move?
