Its the phone, get a replacement from Apple. My previous (Week 31) iPhone 4 had the problem even after upgrading to 4.1 I went and got a replacement and the new one (Week 33) has been flawless.
Its the phone, get a replacement from Apple. My previous (Week 31) iPhone 4 had the problem even after upgrading to 4.1 I went and got a replacement and the new one (Week 33) has been flawless.
Did you try a restore without restoring from a backup?
a "Clean Install"?