Before the OTA I was able to select which apllication was used when the large "phone" button was pushed on the homepage. I think what used to happen was that when you downloaded a new phone dialer and then pressed the phone button the first time you were given an option as to what app you want to use for this action. Once you chose an app it was always activated when you pressed the phone button. I don't see this happening anymore. Am I missing something?