I was having issues with the app frequently freezing during my commute to work which required closing and re-opening app to fix. In response to a separate problem with my current road being disappeared by auto-zoom, I changed my default setting to auto-zoom by distance instead of speed. Not sure if there is a correlation, but since I changed the auto-zoom setting I have not had any instances of the app freezing up.
Running on Iphone 4 IOS 5.1.1.
Running on Iphone 4 IOS 5.1.1.
Re: iOS v3.7.2 Official Feedback Thread