From the actual full transcripts that I read, the 4 years comment isn't completely connected to the price cut. He did say about not planning a price cut this year, and he was asked about platform cycles, and that's when he mentioned the 4 years. He does, however, say that,
"I believe that something must be wrong if we conduct our business with the premise that we will need to cut prices of our hardware as time goes on."
But from my reading of the transcript, I didn't think he means they don't plan to cut prices at all or for 4 years. I agree with others in saying that they will cut prices when they need to. They just didn't/aren't making plans about having to cut prices.
Edit: a link to the transcript. http://www.nintendo.co.jp/ir/en/library/events/080425qa/04.html
