Update: the #1 spot is for DSLR camera sales in Japan (the direct translation means "interchangeable lens type digital camera manufacturer", thanks for the translation Michael).
BCNranking got their stats for 2010 (January-June) and Nikon is #1 by market share for sales of interchangeable DSLR lenses in Japan:
Canon moved to #2 by losing almost 8% compared to 2009 (ouch!).
For the same period, the best selling DSLR camera is the Nikon D90 (total of 3 Nikon DSLRs in the top 5):
Nikon stock gained 4% on the Tokyo stock exchange today (July 7th, 2010).
This could explain why there are no new product announcements from Nikon - they are doing pretty good in terms of sales.