The source code for TextMate 2, the Duke Nukem Forever of text editors, has been released under the GPL on GitHub. (Here’s a link to the repository.) I switched to TextMate when Ruby on Rails was just released and I switched back to OS X, and the editor has hardly progressed since then. (That was back in the summer of 2005, I think.) For the past couple of years, I’ve been using Vim for pretty much everything but Java.
It’s important to note that we’re not seeing a simultaneous release of version 2 of TextMate. The new version of the editor clearly is not ready to go. The question is whether there’s enough energy around the editor for development to progress. If Allan Odgaard is serious about pushing it to completion, it has a good shot at making it — TextMate still has a large, loyal user base and people who would be willing to contribute in small ways. If he’s publishing the source and washing his hands of it, then I think this is curtains for TextMate.