Millennial,
I just took a look at your library for the accelerometer in the 110 module - very nice, much better than my effort! I'll be using your library in future.
I've just posted a first pass at the accelerator library for the 120 module, it's pretty clunky compared to your 110 module version. I'll try to polish it up when I have time (back on the road next week). Feel free to take a look and suggest improvements.
Great job!