Always use app.set_window_title and app.set_window_icon_path. The 'app.' is important if you Sub class Shoes.

Add a close the installer window after spawning the real app.
Ensure gui and packshoes are using the same options
change name for putting icons into and exe. does not work well.
Remove need for su/sudo/gksudo just to create menus on Linux
I'm really happy. Uses xdg-desktop-menu. Works on Debians/Suse/Fedora.