<p>The iPhone 3GS is a touchscreen smartphone, designed and marketed by Apple Inc.. It is the third generation iPhone, successor to the iPhone 3G. It was introduced on June 8, 2009 at the WWDC 2009 which took place at the Moscone Center, San Francisco.
Its features primarily consist of better performance, a camera with higher resolution and video ability, voice control, and support for 7.2 Mbit/s HSDPA downloading (but remains limited to 384 kbps uploading as Apple had not implemented the HSUPA protocol). It was released in the U.S., Canada and six European countries on June 19, 2009, in Australia and Japan on June 26, and internationally in July and August 2009.
The iPhone 3GS runs Apple's iOS operating system, as is used on the iPad and iPod touch. It is controlled mostly by a user's fingertips on a multi-touch display.
On June 7, 2010, at the WWDC 2010, the iPhone 4 was announced.
The iPhone 3GS was made available for pre-order on June 8, 2009 and released on June 19 in Canada, the United States, and 7 European countries, and on June 26 in Australia and the United Kingdom. Within the first weekend of its release, over one million iPhone 3GSs were sold. July and August 2009 saw the</p>