Hi All, Just a quick question - I got an iPhone 4 fairly early in the UK. I heard alot about the signal issues people were having but I couldn't really see mine being that bad. Anyway, after about a month of use, I have become increasingly aware of signal dropping, calls dropping, and places where I used to get full signal with my 3GS now get about 2 bars with my iPhone 4. Do you think I should make an appointment at the Apple Store? Are they still replacing iPhones because of this issue? It's worth noting I do have a case from Apple, the Belkin clear one in fact but I've tried others, what do you guys think?