I hadn’t been paying attention to the TextMate blog, because the editor itself always notifies me when new releases come out and tells me what’s in them. I’ve been missing out, though! Here’s a Tips and Tricks posting that provides a couple of solutions for Python triple quoting and TextMate’s smart quotes (along with a few other tips, like a convenient diff against current saved file command).
Even more recently, Allan wrote about the Power of Snippets, which is a hugely powerful feature of TM. Pretty much anything you find yourself typing frequently can be easily turned into a snippet.
If you’re a Mac user (and particularly if you’re also a unixhead), TM is a great text editor.