Liking that Face Unlock on Ice Cream Sandwich we saw this morning? You can thank PittPatt for that. Here at AsiaD's opening session , Android head honcho Andy Rubin just confirmed that said Pittsburgh-based company -- acquired by Google earlier this year -- was responsible for this nifty security feature. While the demo didn't go as planned for Matias Duarte at the launch event, Andy was able to show us how Face Unlock's meant to work on the stage just now. In fact, Andy said his team even had to "slow down the process" as PittPatt's software was too fast to make folks believe that any security at all was involved -- for what it's worth, Walt Mossberg's beard couldn't get past the unlock screen on Andy's Galaxy Nexus. Head on over to our hands-on video to see us getting up close and personal with Face Unlock.