PAUL WIRTH  I'm very pleased to see this app and I agree this functionality should have been included within Spaces.

I also agree that the following would be welcome additions/changes:

-SpaceSuit as preference pane

-menu bar updates to match background of whatever space  
(Version 1.1)

PAUL WIRTH  This is a very mac-like app that's both functional and pure, clean eye-candy. It's unfortunate that the notes don't seem to be spotlight-searchable. It would be nice if they could be intergrated into organization systems by both being searchable via spotlight and taggable, say with the new openmeta system.  
(Version 1.1)

PAUL WIRTH  I'm running Tiger and it DOES appear that the notes are spotlight searchable now (in response to previous comment).

I love this application. I played around with a half dozen stickies replacements, as well as many note-taking applications and Edgies, with its customizable, stay-out-of-the-way- until-needed format is perfect. Runner-up was SideNote, which is also a shelf-style notepad (and free), but I shelled out the $9.99 for Edgies within 5 minutes for its customizability, spotlight searchability, and equally importantly, its snappy and fun feel.  
(Version 2.2.2)