Implementing Animations on Android

Rotate the text about the circle
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http://stuffthathappens.com/blog/2008/11/13/android-animation-101/

3D Flip Animation
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http://www.inter-fuser.com/2009/08/android-animations-3d-flip.html

http://www.androidguys.com/2008/08/14/flipping-your-views/

http://code.google.com/p/secrets-for-android/source/browse/trunk/src/net/tawacentral/roger/secrets/Flip3dAnimation.java?spec=svn13&r=13

3D Tutorial
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http://nehe.gamedev.net/

http://insanitydesign.com/wp/projects/nehe-android-ports/

Android Developers Blog: An introduction to Text-To-Speech in Android

Android Developers Blog: An introduction to Text-To-Speech in Android

How to turn off the annoying beep sound in Ubuntu 9.04

Go to System>Preferences>Sound>Sounds and uncheck "Play alert sound".

I am not sure if this works for other versions of Ubuntu.