edisoncarter found another cheat, this one makes prostitutes pay YOU. Although if you've already done the pimping missions this happens already. This was the 2nd supposedly unknown cheat, but Bone on GTAForums found out it's use. We still have the 1st unknown cheat we posted earlier, that is still a mystery as to what it does.
Prostitutes Pay You:
If you've already done the pimping missions, this already happens.
This cheat does absolutely nothing
For all the cheats on one page click here.
UPDATE: edisoncarter says the unknown cheat does nothing at all.