Stop auto-scroll in Android browser!
Same issue on an HTC Desire (Android 2.3.3)

I had a crazy scrolling when tapping a text input field (the field get the focus but was scrolled out of the screen) and even worst: when entering values from the native keypad, each keytap was creating an arbitrary scroll..

After seeing this article I looked for some specific -webkit-transform tags and after removing them the issue is gone!

The lines were not even used, it was leftovers from previous attempts staying aside in a css file!!!