When Sony and Microsoft both announced their assault on the motion control market at E3 a couple of years back, I wondered if Move's similarity to the Wii may actually end up working in its favour, as developers used to working on the Wii would find it easier to develop or port similar mechanics across the two consoles, while Kinect was a user interface that required a little more work. Well, that seems to be the case with Top Spin 4, which would appear to be Move compatible, while Kinect has been called 'out'.
According to Joystiq a 2K representative has confirmed that Top Spin 4 won't feature Kinect support out of the box.
Will other developers follow suit and support Move but not Kinect? Probably not. Kinect has helped drive Xbox 360 sales up by 62% this year and has an enormous amount of buzz surrounding it. While the lack of a tactile input and developer familiarity with the tech may result in road bumps to begin with, publishers like money and they enjoy making it.
So I would say that Top Spin 4 will be the exception to the rule.