I would say this is more than a replacement for TextMate on OS X. Stop waiting for a TM update and jumpt to Sublime Text 2. I've been using it since the early alphas and it's always been top notch.

The only thing that bothers me right now is the slightly different keyboard shortcuts between Linux and OS X, but I think you can "correct" those manually by editing a couple of config files. Other than that, I LOVE this editor! :)