You can change the GUI, there's youtube videos on how to do it. One guy modified a G2227, they're all windows based so its the same steps. Just make sure you don't mess anything up. I'm not sure how reversible these units are.
What you can do is load CEFFM and move one of those head units onto the shell by renaming the program as one of the games on there and see if that gets you anywhere...
The one thing I want fixed is with bluetooth streaming it doesn't say who is calling it just spits out a number and for audio it just has the animated equalizer and doesn't give song info.