WithinWindows posted a few sneak peaks of a pre-beta Windows 8, including an “Immersive” full-screen version of Internet Explorer fit for tablets as well as a “Modern Reader” application for digging into PDFs sans distractions. Pretty! The IE screenshot also offers a glimpse of a Windows Phone 7-esque “tile” interface, which is perhaps slightly less pretty. [Within Windows via WinRumors] More