i downloaded it...
as far as I remeber, the code i had (and lost) featured an exemple for the Due board (adressing the storage of calibration values for these board).
This example is not on the code I've just downloaded.
If somebody have it, he/she will be very welcome !
That's a problem.
In Google cache I found this: 2013-05-07 mpu9150lib : The arduino library for the invensense mpu 9150 imu chip now supports the arduino due
So you need a newer version.