In other words: All the things in that video ... except for the things the video was about.
The cool things there, in my opinion, were the code navigation pieces. Those are the things I actually think work better with tabbed files.
In other news, yikes! I seem to have started an IDE vs. Text Editor flamewar. Sorry about that.
They have some great grouping features - snapping, colouring, pushing, connections with lines, naming groups.
This stuff is awesome. First time I've been this impressed by an IDE outside of Smalltalk, Self, or Symbolics, Lisp.