If you want to create beecons for any application then simply create a new beecon and then import any of the files I uploaded into the beecon. Then go into the edit command. The command for katana for example would read:

dbus-send --type=method_call --dest=com.nokia.HildonDesktop.AppMgr /com/nokia/HildonDesktop/AppMgr com.nokia.HildonDesktop.AppMgr.LaunchApplication string:"katana"

You just need to replace katana in the command with the relevant input for the application you want. To find out what name you need to put for any application just check this folder:

/usr/share/applications/hildon

(do not put in the .desktop extension).

To save the new beecon you have created go to advanced then select export command to buffer, export beecon to buffer and then export buffer to file and then save it anywhere you want on the device. So if you want to use the same command and png on a different desktop (or in case your widgets disappear or you reflash) you can just import the file you saved.