According to a series of Twitter updates from Iconfactory developer Craig Hockenberry and John Gruber of Daring Fireball, Apple is now using an automated software tool to check for the use of private API calls in new App Store submissions. After Hockenberry stated that it “wouldn’t surprise [him] if the [App Store] review process now includes a step where they pass your binary through something that checks for framework use,” Gruber…