I'm still considering whether or not to upgrade from my stable 4.5.0.131 OS. The only thing that is making me consider upgrading is that .131 took away the ability to just hold down the Send button on the home screen to get to the Address Book. Now it just goes to the Call Log, where before .131 a quick push would go to Call Log screen and holding down would take you to Address Book. It seems pretty trivial, but it was a feature that I used and liked and now it's gone! Did anyone have this problem also and did it get fixed in the newer release?