very usefull
I like this app, it simplifys life in Beijing a lot.
The big charcters are easy to read for taxi drivers. Searching is very good.
Why not 5 stars .... because of
A, update frequency it is not every 2 weeks, as mentioned at web site (currently 2 month or less)
B, no possibility to add self created cards (such as friends address, own company, secret places (restaurants not mentioned in travel guides)
Scotty 600 about
Beijing Taxi Guide and Offline Maps