Research In Motion (RIM) and AT&T officially launched the BlackBerry Torch 9800 Tuesday at a media event in New York. The phone represents a number of firsts for both RIM and BlackBerry, including the first time a BlackBerry has a slide-out physical keyboard and also the first Blackberry to include version 6.0 of the BlackBerry OS. Here's a rundown of key features for the Torch 9800, as RIM and AT&T prepare to do battle in the hyper-competitive and very crowded smartphone marketplace.