This is what has me really interested:

The MPU-6000 has an embedded 3-axis gyroscope, 3-axis accelerometer, and Digital Motion Processor™ (DMP™) hardware accelerator engine with a secondary I2C port that interfaces to third party accelerometer, compass, or other sensors to deliver a complete 9-axis sensor fusion output to its primary I2C port as a single data stream for the application.

Of course, DMP could just be a new marketing term. But it would be interesting to see what kind of processing it can do. 9 axis fusion output sounds pretty nice. I wonder if they are doing any kalman filtering. Guess we will have to wait for it's data sheet.