This is a awesome addition to the wonderfull RaspberryPi based MD.
On my Panasonic plasma the d-pad, ok-button, the red/gre/yel/blu buttons and the seek buttons work.
On my Samsung LED, the above and play/pause/stop/seek of the mediacontrol-section on the remote also do work.
Will keep on testing
Thanks to phenigma and tschak!