RudderMate is visual utility that makes driving the vehicle happier than usual.
A classical meter displays the azimuth and altitude.
The artificial horizon of the sphere shows the attitude of the car. Both are graphical, and very smooth.

[-] The usage is easy.
1.An appropriate axis is selected from the direction of iPhone automatically, and the RollAxis lamp lights to green.
2.The RollAxis lamp lights red by pushing the LOCK button, and the axis is fixed.
3.The pitch angle can be corrected by pushing two CALB buttons of the screen both sides simultaneously.
(When one of CALB either is pushed, the correction is released. )

Please use it on the dashboard when four-wheel car.
If you ride two-wheel car, tie to handlebar carefully.

[*] Attention
-The consumption of the battery becomes terribly early because it operates the sensor full.
-Please note that a steady feeding power environment such as the vehicle power ports becomes indispensable.
-..confirming the operation.. model becomes only iPhone 3GS(iOS4). I'm sorry.

I wishes that it become a good Rudder Mate!