I merged marioChron into my fork of the multichron firmware. I had to add the 7x7 (Mario-ish) back in. I also added some tweaks to the marioChron firmware in order to smooth the redrawing of the sprites.
I'm looking at adding an optional compile in welcome message; so if you're giving it as a gift there is a nice message when you first plug in the power cable. Also wanting to change the way the menus are redrawn such that only the active menu entry is redrawn when cycling through the menu.