What Google should do in Key Lime Pie

In the next version of Android (KLP) I think Google should make it mandatory that all OEMs allow a kill switch for their UI/UX skin. Just a simple switch allowing you to go from TouchWiz or Sense to the stock Android look and feel.

I realize this wouldn't be as easy as it sounds for OEMs to implement this, seeing as some of them rely on their skin to have special features. But it's just an idea, what do you think?

EX:

34rzplc_jpg_medium

via oi46.tinypic.com

very rough concept / mockup