Mini Rodent is an intermediate step from current Rodent engine to its future second version according to its author Pawel Koziol. The idea behind Mini Rodent seems to be a complete cleanup and rewrite which keeps the essence and allows a better development.
Rodent 1.7 is currently rated 2828 ELO in CCRL 40/4. It's one of 39 anchor engines used to calibrate Rapidroid where the 32 bit Android port floats around 2640,
Since Mini Rodent as a solid reborn is rated 2725 in CCRL 40/4, let's expect 2540 from the Android port of it.
Dowload Mini Rodent: HERE