Just Download, Make Executable, and Run! These Apps have been tested on
Ubuntu 10.04 (Lucid Lynx) 32-bit, OpenSUSE 11.3 (GNOME) 32-bit , and Fedora 12 (GNOME) 32-bit.
Need help? Want to publish your own AppImage? Discuss in the Forum
Experimental GNOME desktop integration here.
there is some information for you to kown more about app bundle
http://en.wikipedia.org/wiki/Application_Bundle
http://en.wikipedia.org/wiki/Application_Directory