Thanks for considering enhancing an already great app with some more working buttons. And I'm glad you mentioned that the store button in your app was functional--I hadn't tried it! I think it may be a proof of concept that when a few of the buttons work, it adds a nice touch.

As far as launching the apps, whatever is easiest for you, because I'm no expert. But I wonder if you could use the the launch information from the .desktop files. For instance, when I nano the fMobi.desktop file, which would be one of the Facebook apps, you see this as one of the lines: Exec=/usr/bin/invoker --single-instance --type=e /opt/usr/bin/fMobi

Is this what you had in mind? All of the .desktop files are in the /usr/share/applications/ directory.

Thanks again.