Hey!
I think a good idea would be to give pn a transparency feature.
Sometimes I need to take note of numbers or GUIDs on the screen, that I cannot copy and paste into pn, and then I have to resize the window in order to view the number while writing it down...
A transparency feature would be great so that I can "see through" pn and write down the GUID or whatever, and not have to resize and move the window.