Everything you need to know about Apple's twice as fast, video-recording, voice controlled iPhone 3GS
At WWDC 2009, on June 8, Phil Schiller announced the iPhone 3GS (the S stood for Speed). While it looked almost identical to the iPhone 3G, the big changes were all on the inside. Apple switched to an ARM Cortex A8 processor and PowerVR SGX graphics core, making it twice as fast as its predecessor. Likewise, the iPhone 3GS was twice as fast on 3G networks, thanks to support for HSPA 7.2. Apple also doubled the RAM and the storage, to 16GB and 32GB, and added not only a better 3 megapixel camera, but VGA video recording and a digital compass. It went on sale June 19, 2009 for $199/$299 on contract.
Code-named N88, version iPhone2,1, and model numbers A1325 and A1303 (China), Apple dropped the iPhone 3GS to $99 on contract in 2010, and $0 on contract in 2011. In September of 2012, Apple discontinued the iPhone 3GS.