I've had the app crash a few times.
1. When I open "Google Voice"contacts and then switch it to "All Contacts"(or visa versa) it crashes. When I restart the app it asks for my GV login name and password.
2. Also I had been using the SMS...refreshing a lot...then I went contacts and tried to sart a new SMS and it wasn't letting me. It then crashed.
The second one I have not been able to repeat that problem. The first one I can repeat about half the time.