Here is a new sensor which could improve stabilisation of our drones.

It is purely a Geomagnetic Sensor however it can output rotation rate just like a gyro. It might even be possible to create an IMU type module using only this sensor and an accelerometer. That would be economical!

Features

- Angular velocity detection and electronic compass functions in a single component made compatible by utilizing ALPS’s proprietary… Continue

ST has released their new range of gyros! Now they can be mounted on one single pcb on the same plane leading to small IMU designs. They also have a large range of sensitivity options.

They are quite cheap too: http://au.mouser.com/stmemsgyroscopes/