How long it is before the next Nintendo console is released is largely dependent on when Microsoft releases the next Xbox. 2012 sounds like a good date. In terms of strong sales, Wii's already seen the best it's going to get. We may see a December in excess of a million in the US, but there are very few areas in which the system can improve. Over the past couple cycles, Nintendo's become very close to invisible around the 3-4 year mark. I don't see why it wouldn't happen again. However, it will continue to be profitable regardless, and I would expect it to be around the N64 level, so it would ultimately be successful. These predictionns to 80-100 million+ are definitely drug induced, though.