Is there any Android game framework ready to use

http://code.google.com/p/libgdx/

http://www.andengine.org/

http://code.google.com/p/rokon/

give it a try...

This other is coming soon: http://www.typhon4android.org/

Here you can find a list of a few engines, including above, I prefer libgdx

I found this one: Andengine. I believe it's under the LGPL license, which is great, but I cannot tell how good it is yet. The code seems to be pretty clean and clear, though.