Over the past year there have been countless screenshots and previews of StarCraft II, the long-awaited sequel to one of the most popular and enduring games ever made. In fact, there's so much information floating out there that it can be somewhat overwhelming, so IGN has put together this preview that condenses all the critical information that you need to know into one a single informative video. IGN will spell out some of the key features, cool units, and changes thus far. Keep in mind, the game is still in development for release either later this year or sometime next, so changes can and probably will happen. But this is everything that is known to date.