Procrastinato said:
It's really dependant on how similar a Wii HD is to the current HD twins. Similarity == ease of porting.
If a "Wii HD" had 256MB of system memory, and at least 128MB of graphics memory, or a unified memory architecture with 384MB or better, along with a 3 GHz Broadway, and ~400 MHz GPU, the Wii HD would likely see a truckload of HD crossplats. The PS3 and Wii HD would see a lot of "motion controller twins" crossplats as well.
If a Wii HD didn't meet all of those specs, it'd still be difficult to port games to it. The system memory and CPU being approximately that of the HDs is the most important, since to reduce the amount of system memory you're using, and processing the main game loop requires, you usually have to change your game completely. The GPU speed and GPU memory don't have to keep up as well, since they are much easier to level-of-detail down the use of, without changing the game.
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if a WII HD happend, and thats iffy as hell. I mean, ninty doesnt really relaunches consoles updated,just handhelds. IF it happened, its easy to top the 360 in perfomance with low cost hardware at this point, with propper development investment,so i doubt a "wii hd" wouldnt be able to perform anything on the ps3 or 360 .And then, yes, the biggest titles that can sell even on iphone, would be ported no doubt.But admit this cycle is tricky compared to previous ones, is longer and Nintendo might, just might skip the "update" and go jump into the next gen sooner than the rest to avoid losing brand recognition and further support.
