Allan Odgaard announced today that the upcoming TextMate 2 (the next version of development text editor TextMate for the Mac, a commercial product that costs US$49) is now open source software, and is available on GitHub for those who wish to contribute. The application is covered under version 3 of the GNU General Public License (GPL). From his announcement:
I've always wanted to allow end-users to tinker with their environment, my ability to do this
