BoyNotes 1.0 for Mac is free to download from our application library. The software lies within Theming Tools, more precisely Multiple Desktops.
From the developer:
BoyNotes is a replacement for Apple's NotePad program. Just enter some notes and close the BoyNotes window when you're done. Your notes are automatically saved. Includes handy preview column.
You may want to check out more software for Mac, such as Cisdem WindowManager for Mac or Scrapbook with Neko, which might be similar to BoyNotes.