Id love OmniGroup to knock up a simple NotePad app. I have used FishPad for a very long time, unfortunately the developers have fallen off the radar and the app is only PPC code. So far i have found nothing to replace my beloved simple Fishpad. Basically FishPad is a TextEdit with multiple pages using a database and an embedded search function not Spotlight indexed.
Im sure it would take no more than a few days to build. It could be named OmniPad ;-)
Here is a pic of FishPad.
Here is Fishpad.app
http://drayond.xsmail.com/Fishpad.app.zip