Seems I have a little bug in the Sync window.
I compared a local 4 days old version of Remora (the Mozilla Addons site system) with one just downloaded.
The keyboard shortcuts to do things on whole folders doesn't seem to work - I can only rclick a folder line and select the function I want by mouse, they cannot be used by keyboard. Or at least, Ctrl-M doesn't work.
Image showing dialog
And a very minor graphical thing,when using mouse scrollwheel or mouse to move scrollbar by dragging, last empty line in the Sync window is shown as black. It isn't, however, if I use the arrows to move the scrollbar down, then it's redrawn as white.
The black bar
I know - only one bug per post, but last one is really minor and of no consequence.

And this belongs in feature requests I guess - are there any way to make it not see the .svn folders and subsequent files? (also for cvs actually)