I realize that this is still a beta version but I wish to to mention a few things...
-> The Selection Tools
Hitting the escape key no longer gets rid of the selection.
-> The Unsaved Changes dialog
Whoops sorry, made a mistake here. so it's not S and D. I guess it's the S and N key. Can the dialog at least somehow indicate these keys.
What's with this Save, Don't Save? What happened to the simple Yes, No, Cancel. I have been able to work very effeciently with Paint.NET by using in some case just the keyboard. The Y and N keys for Yes, No were at least more seperated but the S and D keys for Save, Don't Save are too close together resulting in more accidental hitting the D when I meant to hit S.
-> Under the File Menu, for Acquire
What happened to Acquire from selection, has it been moved? I can't find it anymore.
Other than that, love the program. Just please don't lose sight of the fact that the keyboard is also a very important tool to a designer/artist along with the mouse.