I have searched high and low for an answer on how to replace a scratched screen of the SGS2 by yourself and have finally found the answer.
This will definitely VOID YOUR WARRANTY so don't say you haven't been warned.
I suggest you only use this ...
I'm using a rooted Motorola Atrix. Just to let you know that removing it via Titanium wasn't enough as it kept on giving an error 'Application not installed'.
These were the steps I did:
1. Used Titanium to wipe and delete Google Maps