Ladies and gentlemen, the browser war just took on a whole new hue. A new, Firefox-based browser called Flock hit the Web today (as a developers' preview, anyway), and, in my opinon at least, it looks like a winner. If by "winner" you mean "the product that makes you wonder what we were all fighting about in the first place." More after the jump (really). If it's anything like it sounds, Flock will take browsing to its obvious next step: a gateway to Web 2.0. It integrates with del.icio.us for online, shared bookmarking. It includes a built-in RSS reader, integrated...