Each week Ross Rubin contributes Switched On, a column about consumer technology. Amid all the origami variations of the PC at CES this year -- things that swiveled, folded, docked and rotated around their hinges -- one of the more intriguing form factor variations came not from a twist on the classic clamshell, insurgent slate or a hybrid of the two. Rather, it was a variation of the desktop via the all-in-one, one of the few of that embryonic breed known as table PCs courtesy of the Lenovo IdeaCentre Horizon. Table PCs entered a broader collec
