WORD!
I was in Beijing constantly using taxis, and it was difficult to communicate with the drivers. Next time Im in beijing itll be a breeze. Plus when I start learning Chinese its like having flashcards on your iphone to practice how to read signs. Also, if you are walking around you can use it to "read" the signs by matching the chinese characters. But itd be nice to have reviews and location_based recommendations
Jyeezy about
Beijing Taxi Guide and Offline Maps