I can’t help but notice that a lot of people’s arguments against Nintendo’s ability to produce a "Wii HD" are making the argument "... because Nintendo produced the Wii in the way they did, they will produce the Wii HD using the same strategy!"
Now, inspite of a lot of people's assumptions, Nintendo is not a dumb company and they didn't just get "Lucky" with the Wii; they analysed the market conditions leading into this generation and produced a system which they thought would be best suited to perform well under those conditions. The processing power of the Wii was (probably) very carefully chosen, and there are (potentially) countless reasons why it is so much lower than the other systems; when you consider the number of PS3/Xbox 360 games that run at a resolution lower than 720p (potentially as low as 600p) and have a framerate lower than 30fps Nintendo may have decided that producing an affordable ($200 to $300) system that was the "Best Performance for the money" only doomed them to an endless stream of shitty ports from the HD consoles (in a time when they wanted developers to focus on the unique capabilities of their system).
If Nintendo feels that the market conditions are similar in the next generation we may see a similar approach from their next system; in contrast if there are noticeable differences in the market Nintendo will probably adapt their strategy to best suit (in their opinion) the new market conditions.
