Microsoft at its Build conference showed off a Developer Preview with a much more complete view of Windows 8's interface than it showed in June. The new OS is built to uniquely take advantage of multitasking and has a new option for "dockable" apps: every Windows 8-native app has both a full-size and docked mode that lets them run side-by-side, such a social networking app next to a video. In full touch mode, users can swipe in from the right to get to the Start menu or similar core tasks and switch apps from the left.
