For a more recent example, I did a bit of an audit-like-thing a month or two ago, using Wikipedia's list of console exclusives, found here; http://en.wikipedia.org/wiki/List_of_video_game_exclusives_%28seventh_generation%29#Xbox_360
Using November 4th, 2010 as a starting point, i.e. when Kinect games first started coming out, I counted about 56 exclusives titles for the Xbox 360, as well as 4 PC-ported 'sorta exclusives.'
Which I then cross-referenced with THIS list; http://en.wikipedia.org/wiki/List_of_Kinect_games_for_Xbox_360
After removing everything that was listed as requiring the Kinect, or wasn't a game (there were some video editing stuff, and interactive TV titles that required the Kinect for full utility anyway) and I was left with 9 'true exclusives,' and of course the 4 PC ports.
Of those 9 true exclusives, 7 belonged to Halo, Gears, Forza or Fable; the Fable title wasn't even a new game, just a remade version of the original. So, six new games, basically, from existing franchises, over the course of around four years.
The remaining two games consisted of a Kinect shooter (that I didn't disqualify only because it wasn't listed as NEEDING the Kinect) called Blackwater... aaaaand Sesame Street: Once Upon A Monster.
The four PC games, for the record, were State of Decay, Toy Soldiers: Cold War, Minecraft, and the Witcher 2.
Zanten, Doer Of The Things
Unless He Forgets In Which Case Zanten, Forgetter Of The Things
Or He Procrascinates, In Which Case Zanten, Doer Of The Things Later
Or It Involves Moving Furniture, in Which Case Zanten, F*** You.