I have recently experienced a few crashes with the app. The last time it happened I captured the Android log which should give you some information and help you track down the cause.

The full log is here: http://pastebin.com/qEraB6Qp

I think it is these two entries at the very end of the log that point to the cause:



I was at home using a wifi broadband connection at the time, so it is not a network connectivity issue.

Hope that is gives enough information to track down the cause. I believe I was activating a map area when it happened.