Sprint Guardian has been in the oven for some time now -- we actually heard about it during our interview with John Tudhope and David Owens at CTIA 2012 -- but now, at long last, the service is available. Concerned parents nationwide can locate Guardian on "many" Sprint Android-powered phones through the Sprint Zone. The program itself features apps from Safely and Lookout, enabling parents to "protect their phone-carrying children through location checks and limits on texting while driving or at school." In other words, you can prevent
