aMetro

Here is a wonderful and indispensable tool for those who often travel on the subway! Complete map of the routes of all cities. Base maps expanding all the time, and possibly more cities will be added. In addition there is also a bus route maps. This program will help you not to get lost in a big city.
Maps for aMetro not built, and downloaded from the network online. I think it's very reasonable. Since the database is updated almost every day, and download updates uncomfortable.
In addition to other advantages of this program also lets you track your location via GPS. However, this option is available so far only for big cities. With GPS you will see which station is closest to you and what is necessary to leave the station.
Of the main disadvantages: No Multitouch for a long time and application loading. But the developers have promised that these problems will be solved very soon and corrected. Let's wait for the new versions.