I've preordered Tiles a few months ago and hope they will start shipping soon. When I placed the order the shipping information said Winter 2013 but now it seems to have been pushed to Spring 2014.
There are a few similar trackers out there, e.g. Swedish based uFinder (not mentioned in TNW article). I ordered my Tiles before uFinder launched and asked uFinder what differs them from Tile. I got no reply so I think I'll wait for my Tiles to arrive before testing anything else. I especially like the community aspect of Tiles that I haven't seen from anyone else.











