OK, this is a great App and its free. I downloaded from the App Store. Set it up in about a minute using my existing Apple ID and password. Then you can go to me.com, enter your ID and password and it will show you where your iPad is currently. (in my case not just the building, but pretty much where in the building!)
You can also make it play a tone for two minutes, send a message to display on the device. You can even lock the iPhone or iPad, or if need be, wipe all your private data off of it. All for free.
You can also make it play a tone for two minutes, send a message to display on the device. You can even lock the iPhone or iPad, or if need be, wipe all your private data off of it. All for free.