Apple has announced the next-generation iPhone, the iPhone 4S. Although externally it appears identical to the iPhone 4, internally it's seen many changes. It includes the same dual-core A5 processor that debuted in the iPad 2. Its graphics processor, which is also dual-core, provides up to 7 times the graphical performance of the iPhone 4's A4 chip.
The iPhone 4S has improved battery life over its predecessor, and it now allows for 8 hours 3G talktime, 14 hours 2G talktime, and 6 hours of 3G web browsing.
The iPhone 4S's wireless system has also been tweaked; the handset will now intelligently switch between antennas for optimal performance. This not only improves signal reliability, it also doubles the theoretical maximum speed from 7.2 Mbps on the iPhone 4 to 14.4 Mbps on the iPhone 4S. The
