Booyah , one of the companies gaining buzz in the check-in service space, has announced a new product check-in feature for its MyTown game/service. With the feature, users can use their iPhone camera to scan barcodes of products to unlock points and earn virtual goods, as the company puts it, "creating a game out of real life items." "We first made the location check-in fun," says Booyah CEO Keith Lee. "Now we're making products fun.