Hi there,
I've noticed this previously and it's still there in the final release. I'm wondering what the reasoning is in forcing a user to click on the tiny arrow to expand a node (i.e. document types or content tree items). I continually click on the text, the entire row highlights when you mouse over it so it implies that it's clickable, and yet nothing happens. To me this is both counter intuitive and also difficult in that the tiny arrow is harder to click, both with a mouse and in touch interfaces. Why wouldn't the whole row be clickable? I don't think you'd hear anyone complain if you made this change but I'm sure people would appreciate a larger area to click on.
That said, 7 has made some amazing improvements between RC and Final Release, well done all!
Regards,
Phill