I upgraded my iPod Touch 1G last night from Beta 3 to Beta 4, and i figured that something real bad happened: the volume bar had disappeared. First off, i tried rebooting, and that didnt help. I put it in my dock and nothing showed. I was browsing through the settings app, and still nothing. I decided to plug in my headphones and the volume bar appeared. If someone can confirm that it works on iPhones and iPod Touch 2G, that would be great.