The easiet way of installing Application's Fullscreener is by clicking on upper's "Install" button or through its entry in Maemo Downloads.
Application's Fullscreener brings two main tools:
~ $ gtk_fullscreen_process skype
From the command line, this example will send a fullscreen hardkey event to a running Skype instance.
~ $ g_launch_and_fullscreen skype
From the command line, this example will launch a new Skype instance and send a fullscreen hardkey event to it after some seconds.
Application's Fullscreener is used by Automatic Skype Launcher to actually launch and fullscreen Skype.
Application's Fullscreener is hosted in Maemo's Garage and its code is licensed as LGPL 2.1 and hosted in Gitorious. Fork and contribute at will!
Please, feel free to send me an email to postmaster at andresgomez.org for reporting any issues you might find.