If I'm binding the arrow keys (to scripts) I can say goodbye to nudging widgets. This is because when trying to nudge the widgets, the script will also run.
Example - (Even though I'm hitting "shift+down" while the bound key is just "down", I get this...)
A possible solution would be to bypass them if the editor is open.
On a similar but different note, I wanted to navigate up and down the tree with the arrow keys so I could quickly edit the same property in the inspector for each widget...but the arrow keys always nudge widgets...