Japanese magazine BCN [Google translate] has posted their March 2010 ranking for the top 10 DSLR cameras sold in Japan.
What is interesting with those numbers is the strong showing of the micro FourThirds Digital Interchangeable Lens (DIL) cameras, aka mirrorless DSLRs.
Together, these two DIL cameras account for approx. 15% of the DSLR sales for March. [Amateur Photographer reports that 10% of DSLRs sold in February in the UK were mirrorless.]