Ther terminator, the boundary between day and night, is not drawn correctly. The terminator changes during the year. In this app it's a static image that moves across the map. (And the obvious joke that it's right twice a year doesnt work either: the terminator in the app will never happen.) Also, there's no way to enter a city or select from a list. You just have to hunt and peck with very little ability to zoom. Potential is there, but right now it's just not very useful.