Apple just announced the iPhone 4S and it looks exactly the same as the iPhone 4! Does that mean it's plagued by the iPhone 4's notorious attenuation problem? No, not anymore. This time around, they fixed the antenna.
What did they do? According to Phil Schiller at the keynote, there's two antennas on the iPhone 4S and their engineering team has built a system where "it can now intelligently switch between two antennas between send and receive to make even better call quality". That's never been done in a phone before, apparently.
Read up on everything Apple announced at the iPhone 4S event at our round-up article here.