Newer Technology (http://www.newertech.com/) has announced the NuGuard Keyboard Cover for the MacBook Pro with Retina Display. It’s available for US$17.49 at http://www.newertech.com/products/laptopAccessories.php .
The black, silicone cover is the first and only keyboard cover on the market for the 2012 rMBP and matches the function keys printed on the full-sized keyboard’s 78 (U.S.) keys. NuGuard Keyboard Covers feature a silky smooth silicone surface to provide the fastest touch-typing possible, according to Grant Dahlke, brand manager, Newer Technology. The form-fitting sheet is molded to cover each key and the space between each key for protection against key wear, food/drink spills, and dust/hair clogging.