I just downloaded and checked it out. I don’t remember seeing a post about it before, but if this is something old pardon me.
Anyhoo, it’s works just like Google earth except it’s on your phone (and it’s called “Google Local for mobile”.) For those of you with HiSpeed 3G plans it’s something else fun to play with (I had no trouble finding my pad in Yonghe on it.) I could even see it coming in handy some day.