US consumers warned that if they don't secure a unit soon , they'll miss out in 2010.
On track for five million by the year end, says Microsoft.
Kinect Sports new at No.4.
It's a sandbox for developing technologies.
Expects five million units to be sold this holiday.
The key is getting people in front of the technology, says MS.
More dance and fitness titles.
17 games - mostly dance, fitness and sports.
On track to be the number one consumer electronics purchase this holiday.
Developers are just customising experiences around the best way to play, says Kudo Tsunoda.
4GB Xbox 360 Kinect bundle to be offered for £249.99.