Wacom's Cintiq Companion tablets offer mobile pen display chops for Android and Windows 8 starting at $1499 Back in March, Wacom teased a standalone tablet for the graphics-minded set. In the meantime, the outfit released the Cintiq 13HD: a slate-size pen display that nailed down the compact end of its Cintiq line, but must remain tethered to a desktop or laptop for use. Now, the peripheral compan