Hey all, I have an iPhone 3G, and the volume control fell off the phone. I usually keep the phone in my pocket, or on my desk, in my bag, or in my car's cup-holder. I haven't dropped the phone recently, and I literally just looked down and noticed it was gone. I don't drop the phone excessively, however I don't use a case and the phone's white, plastic back obviously has wear from almost a year of use. I do have a screen protector on it at least. I made an appt at the Genius bar for this week, what should I expect?