The bugs thread has a post about Amazon Store installing version 3.0.0, which is what has happened to me. The upgrade, as they always do, forces me to re-enter email login details and re-verify - which doesn't work. I'm not sure what else I can say - I entered the verification code, it didn't work. Now I'm told I have tried too many times. There are no announcements about 3.0.0 being released - it's still Beta from the look of it?