I found a handful in the market, but they're all riddled with bad comments.. Not sure if this is worked out or not, but would be nice to have something like that
I personally have tried most of the ones in the market, including the paid ones.
They all have tons of flaws where the phone will freeze, or the screen stays black, or worse. I had so many problems I had to uninstall all of them after a couple of hours.
Get the one w/the mona lisa picture on it. version 3.0.3. I got the paid one but there's a free one. the paid one offer brighter/clearer pictures. I've had good experience w/that one. Not sure about everyone else