The signal issue and call dropping is basically due to the antenna located on the sides of the iPhone 4.
When contacted Apple, they had asked to hold the iPhone properly or use a case to avoid direct contact to your flesh. Shockingly, this was replied by Jobs himself.
If this is the case, I do not think they would re-call. Unless and otherwise all iPhones are returned or usage is boycotted.
The signal issue and call dropping is basically due to the antenna located on the sides of the iPhone 4.
When contacted Apple, they had asked to hold the iPhone properly or use a case to avoid direct contact to your flesh. Shockingly, this was replied by Jobs himself.
If this is the case, I do not think they would re-call. Unless and otherwise all iPhones are returned or usage is boycotted.