Interesting...
To go off-topic a bit here, I really like the idea one of the commentators to article had: To put a Canon compact sensor into a smartphone. That would be really nice, and I guess Canon could earn aLOT of money that way.
Ok, back on topic. It is very true that a good product does not mena that you can sell said product. But, when looking at the profit Nikon will STILL have (4-500 millions?), I would not get too worried. Although the trend is not looking the best for entry DSLRs...