Desktop links for command-line apps?

Hi,

I've been searching around quite a bit the past few days looking for 
info on creating GPE desktop links.  I can create a new file in 
/usr/share/applications and the new icon shows up on the desktop.  Can I 
get a terminal window to pop up with the command running so I can 
control the app?  For example, mplayer needs to be able to accept 
commands for pause, stop, ff, etc from the keyboard.

Here's the file I created:

[Desktop Entry]
Encoding=UTF-8
Name=MP3 File
Comment=Media Clip Link
Exec=mplayer -ac mad /home/root/media/my.mp3
Icon=myicon.png
Terminal=true
Type=Application
Categories=Application;Network;

Btw, lua looks nice.  I'm going to download and check it out now.

-- 
David Nordstedt