Not within the Premiere Pro interface, no.
Myself, I keep those written notes on the desk in front of me.
I do that to, but there are times when I don't have a printer or the notes are pretty exstensive. Having a docked panel would be faster a la "cut n paste" into window.
The best you could probably hope for is to have two monitors hooked up, one for PP and one for the notes.
Go here to find out if someone is working on such a feature http://forums.adobe.com/community/premiere/premierepro_current/sdk
Go here to tell Adobe what you want added https://www.adobe.com/cfusion/mmform/index.cfm?name=wishform