Move the two tantalum capacitors which were on the "back" to the "front" side, make corrections to the battery holder footprint including a hole which was missing for plastic pillar dealy (3D model contradicts the recommended footprint, may need to be adjusted depending on prototypes), place the 3V3_P and 1V8_P bypass caps throughout the board (as well as two of the 5V_P caps)

Only 8 more 5V_P bypass caps need to be placed and the unrouted count will be 0!