This is based heavily on the sample app found at 
http://developer.android.com/resources/samples/ApiDemos/src/com/example/android/apis/graphics/Compass.html
which was then edited by James Baster. james -at- jarofgreen -dot- co -dot- uk
and then edited by Tomas Mudrunka.

Copyright (C) 2007 The Android Open Source Project
Copyright (C) 2011 James Baster
Copyright (C) 2011 Tomas Mudrunka

Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at

      http://www.apache.org/licenses/LICENSE-2.0

Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.

