In spite of all the cool features, this update suffers from the same issue that drove me away the last time I tried Textmate: single-character undo. I can understand why this would appeal to some users, but most other text editors undo in bigger chunks, something I've come to expect and prefer.
My original feeling about Textmate overall remains about the same. It probably appeals to recent OSX converts--it's a giant step forward from any Windows-based text editor I can think of--but lacks a certain "Mac-ness" long-time OSX users expect.
Thus Textmate risks falling into a no-man's land: users less set in their ways in the Mac world may settle for the relatively clunky IDE text editors; stubborn old-timers will prefer the more familiar feeling BBEdit.
As for the paucity of updates, let's cut Allan some slack. After some 20 years, BBEdit is only at version 9.6 and vim is only at version 7.3. Quality takes time.