Looks like I forgot kb_util.c/.h yesterday.
The GPS module now defines ecef2lla, which is used to display Lat/Lon. I also added this to the python module, though it seems to be doing integer math instead of floating point.
I started on the vectornav module, though I think i'll need to convert it to DMA transfers instead of polledExchanges.
The ST7565 module now has draw/fill rect.