Concerned less with bettering mankind so much as revelry, the team at Willow Garage has spent what I can only assume must’ve been an enormous amount of effort creating a ‘beer-bot’: a robot that – surprise! – goes to the fridge and grabs you a beer. ‘Now, Ty,’ you say, ‘Ty, this beer-bot business is old hat!’ I hear that. Musty, crumpled stovepipe hat. Every time you turn around, everyone and their grandma is building a beer-bot. The market saturation of beer-bots is just getting ridiculous. Gee whiz, guys. Slow down. But this isn’t grandma’s beer-bot. The PR2 (Willow couldn’t be arsed to give the…