Just how accurate is the iPad locator? For example, the dot shows it is somewhere on the sidewalk of a particular house (I think it was stolen). There is nothing on the sidewalk. Could it be inside the house? What is the radius of accuracy? Thanks!

Depends... Was it a 3G iPad or a wifi-only iPad? If it's 3G, it has a GPS, and that should be fairly accurate, though can be a bit off when it's inside. If it's wifi-only, it's relying on the location of the wireless network it's on, which can be off by quite a bit. My iPad constantly thinks it's at the neighbor's house across the street.

Report it to the police, give them the location info, and let them handle it.

iOS 5: Understanding Location Services

http://support.apple.com/kb/ht4995

Find a Lost iPhone: Putting Tracking Apps to the Test

http://www.pcworld.com/article/230846/find_a_lost_iphone_putting_tracking_apps_t o_the_test.html

 Cheers, Tom 😉

GPS location is plus or minus 30 metres, on a good day.

And do the police report quick, before the guy wipes it, and you lose the location info.