During their annual World Wide Developers Conference, Apple announced their newest most powerful iPhone yet, iPhone 3GS.

The S, said the company, stands for Speed, meaning the new phone will load a web page three times faster than its predecessors. Apple calls it “the most powerful, fastest iPhone we’ve ever made.” Also, viewing Excel is faster and loading SimCity is 2.4 faster. And it can also capture video at 30FPS VGA.

It will have hardware support for the OpenGL ES 2.0 standard, and this should make graphics-intensive applications run smoother.

The 3GS can take voice commands, has a more powerful battery, and a starting price of $199 for a version with 16 gigabytes of memory. There’s also an 32 gigabyte version for $299. The phones will begin to go on sale on June 19th, but the 16 gigabytes phone will release on the 17th. However, the existing model iPhone 3G will remain on the market with a reduced price of $99.