We have been using iPads for 2 to 3 years now. We have used an app called eCompliance InspectionPad which was free when we started but the price has since gone up. It works well and is very flexible so overall I would say it is a success. You can create your own forms very easily and embed photos and then email the building owner a complete PDF immediately at the end of the inspection. iPads currently cost anywhere from $600 to $1000 depending on size, features and specs.