Split-screen support is still very clunky. I don't understand why you need to define a new "group". Layout-wise it makes sense as preset layouts, but other than that the group doesn't help at all.<p>The best split-screen implementation is E-Text Editor. In E, you can drag the tab to create a new split, then "Cmd T" in ANY tab will bring you to the previously opened file in the split. Basically I don't have to remember where the file is opened, as long as I know its name, I can just jump by typing the name. That is how quick jump should be. Also, you can arrange the windows by dragging-and-dropping to another split. I stop using E after version 1 because I made the switch Mac and I have to use Textmate, which does not support split-screen at all (what a shame!). And I miss E dearly.<p>Currently Sublime Text quick jump is still bad, because it still requires a context switch (switch to the group that has the file opened, then Cmd T), or worse, complete loss of current context (Cmd T would open the file in current group, thus you lose the view of the current file you're working on).<p>So as long as split-view doesn't get implemented properly, Sublime Text is still just another editor.