re: Thank U very much
That's a bunch of gargonzola. The technology may have Security applications, but it was marketed to us last year as an urban planning/engineering tool, in a meeting open to all our employees (our local GIS user's group). We are a local government planning department and GIS shop. It's sounds like you got conned into buying somebody a lot of stuff. But there's no question it can be used by the local property appraiser to find out how big that patio you added last year is...but standard air photo can do that too.
I believe Pictometry has a website, try googling for it and reading up on it yourself. It's neat, but it ain't magic.