I just noticed the new commit window in the latest release of TM2. My initial reaction is that I don't like it. Here's a couple of comments:
* The new look feels quite heavy. It uses a lot of textured/brushed (or what they're called) controls. I get the feeling that Apple is moving more towards controls that feel more lightweight
* The bottom bar doesn't look like the one in the main window
* It's not possible to change the height of the commit message text view
* The cancel button doesn't properly work. The other window that also opens still waits for a commit message (or something) after the commit window is closed
* One thing that's been bugging me or quite a while is that when doing an amend the check box for updating the commit message is enabled by default but there's no commit message. The commit message of the commit being amended should automatically be inserted in the text view and all text should be selected. This makes it easy to just change the commit message when amending. Or just add new changes without updating the commit message, all without needing to use the mouse