Writing Java Mac OS X apps with SWT

I have been playing with idea of Mac desktop apps, I don't have a tutorial yet, but here are few links:

SWT: The Standard Widget Toolkit

http://www.eclipse.org/swt/

Deploying SWT Applications on Mac OS X
http://www.eclipse.org/swt/macosx/


Mac .app 
The .app is just a directory with a specific structure and a few special files.
AppName.app/Contents/Resources/Java/AppName.jar.