Anyone using Google Latitude?

I was checking out Google trends and I saw that their new application Latitude was one of the most searched about items last week.

For those not familiar it's a piece of software that works with your phone (Black Berry, T-Mobile running Android and iPhone soon) and let's people know where you are through a combination of cell phone towers, wi-fi and such.

It seems sort of strange to me but I'm wondering if people are finding uses out of it for a possible story in the St. Petersburg Times.

So if you or anyone you know is using it let me know.

Thanks!

Tristan