That screenshot makes it look like there's no text folding arrows for Sublime, is that true? I wouldn't even try it out if it's missing that feature because I use it in Textmate dozens of times a day.
It's true. And it's one of the reasons I can't keep using Sublime.
Also, as nice as that preview-scrollbar is, it doesn't show the full file. Just ~ 3 screens worth. Almost totally useless for navigating a file as opposed to a function. As much as I hate Visual Studio, the MetalScroll plugin is just what I would have liked. You can get a "feel" for the layout of the entire file / class / etc in one glance, navigating with it is massively better. http://code.google.com/p/metalscroll/
What would make me happy is TextMate + Chrome-like tokens in the scroll bar for where matches exist when you search. And threaded project-searches. But alas, TM hasn't changed in quite a while. I guess it's time to learn Vim.
Update: After going through other mono fonts... it seems like all of them are spaced just a little farther apart than what they appear like in Textmate, Espresso, etc.