Starcraft II Hands-on Preview

GameSpy has a hands-on preview of the multiplayer beta currently going on for Starcraft II. It sounds interesting, but I wonder how the single-player piece will work. Lookit!
Let's start with some of the biggest changes. Gone is the 12 unit selection limit from the original StarCraft. Now you have limitless selection, allowing you to control the movements of a massive force at once. According to Lead Producer Chris Sigaty, this is one of the most controversial changes that the StarCraft II development team has decided to implement. Will it make the game that much easier now that you don't have to set up quite so many control groups? From my hands-on experience with the game, it definitely helped to be able to control the massed Zealots that were the first strategy I employed in a battle against a Zerg player.