On Thu, 2006-08-10 at 22:45 -0400, Joshua Nichols wrote:
> Hey folks,
> 
> I'm looking to build a list of killer open source Java applications for
> the desktop...

JAlbum seems to be a great little app.  It's also listed in Sun's Java
Desktop showcase and is a mature product.

Desktop showcase:
http://www.java.com/en/desktop/jalbum.jsp

Home page:
http://jalbum.net/

~ Greg