Since mid-afternoon 10m seems to have fallen back and the DX (such as it was) has disappeared. 4X1RF and DK6UG have spotted me but no more South Americans, Central Americans or North Americans. Being 10m, everything can change in a few minutes! If it does, you will find out here - I intend to remain WSPRing on 10m into the early evening, at least and whilst on 70cms.
UPDATE 1900z: CX2ABP just spotted again, so 10m is still open to South America.