As expected, Apple has unveiled a new version of the iPhone at its Worldwide Developers Conference today. Officially known as the The iPhone 3GS will run the upcoming 3.0 software and should be available June 19 in 16GB and 32GB flavors for $199 and $299 respectively. Those who don’t find these updates enticing enough may be interested to know that the current 8GB iPhone 3G will remain available for $99 with a two-year contract.