IMO This thing is better than Google Maps

A friend of mine showed me this site today called Google Maps: From 0 to Instant (v0.2) and I have to say I am impressed! I'm on a WiMax connection that's ~1mbit download on a good day (normally half that though), and this page zips in and out in any mode like I'm on NCIS or something. I hope it's not some sorta ripoff malware site or something, but I doubt it.