I recently bought a plastic hard case for my iphone 3g and noticed that i wasn't getting good reception at all, my 3g would keep on dropping out. I am with Optus. I started to get real annoyed and tried to find possible solutions. i decided to take off the case to see if it would make a difference and it did. I now have full 3g reception wherever i go. I am not sure what brand the case was when i bought it but i know its a china brand. Has anybody else experience the same thing?