Whether the PS360 motion control solutions affect things or not is all down to affordability once they're released. The Wii comes with motion control out of the box and has third party support. The PS360s on the other hand will involve an additional purchase and as a result may not necessarily have a great deal of third party support until the numbers of users owning said solutions makes it financially viable.
The success of the Wii caught the industry by surprise and it's only 2 and a half years after launch that third parties have got their arses in gear to produce quality software imo. The PS360s may have a motion control solution by 2010 but it could be another year or so before third parties start to seriously support it depending on the number of households owning motion control solutions.
And no, I can't see the marketshares changing that much tbh.







