Made from a mix of contrast-stitched faux black leather and soft gray microsuede lining, Elan Sleeve ($50) initially looks pretty simple -- a sleeve that holds the iPad inside -- but winds up including a top-mounted pull tab that can easily eject the device from its sheathe, a nice feature borrowed from Apple's long-discontinued iPod Leather Cases. The exterior material looks a lot like the floater leather found in Vaja's considerably more expensive…