Offering serious versatility, Lenovos new Miix 2 10-inch and 11 inch Windows 8.1 hybrids have three modes. You can use the tablet portion by itself for kicking back with some apps; flip the screen around and re-attach it in stand mode (good for presentations and movie watching); or use the keyboard dock for notebook mode. We just went hands-on with the 10-inch, Atom-powered Miix 2 ($449) and beefier Core i3 11-inch model ($599) here at CES 2014, and liked what we saw from both convertibles.