This week, we inadvertently stumbled across a pretty neat, cross-platform, geo-location mobile app titled echoecho. The premise behind echoecho is simple: instead of using a service like Facebook or foursquare to broadcast where you are, it offers a way of requesting the location of a single friend. The application integrates with your phone’s address book and sends a message to friends asking: “Where are you?” If your echo’ed friend chooses to reply, you are given their location and can then view that location — complete with the distance between the two of you — on a map . It is definitely an interesting, more personal twist on geo-location. We can see the service being useful in crowded bars, clubs, and the work place; amongst other locations/situations. Echoecho is available for Android, BlackBerry, iOS, Symbian, and Windows Mobile. If you’re interested in learning more, hit the read link to check out ee’s website or your mobile platforms app store to download the goods.