While Apple absolutely did not leak one on their website, elaborating on why that wasn't a 12-inch iPad Pro got me thinking again about what could be. Yes, a bigger iPhone 6 still feels far more important, but that doesn't make the mental exercise any less interesting. So, beyond how Apple could scale the iPad display to 12-inches, how else could Apple differentiate a larger tablet? What other features could Apple add to make an iPad truly "pro"?