http://www.youtube.com/watch?v=p913fGx6 ... e=youtu.be
You can't tell much from the video, but as far as I know, this racquet is going to have sensors in it to measure your swing - velocity, acceleration, angle of the racquet face, etc.
I'm a bit skeptical, but this could be a very useful learning aid. Imagine you make a change to your stroke, and you can tell very accurately the effect it has. It could also be very useful for racquet customizing - especially in determining your ideal racquet weight, balance, and swing weight.
I hope they make a kit that can be used on any racquet, so I don't have to destroy a bunch of frames to get the sensors out of them.
Anyway, you'll hear a lot more about it soon.