The Cosmopolitan of Las Vegas, currently rising between CityCenter and Bellagio, has solved one of its bigger pre-opening problems - the lack of an existing customer database.
They've decided to partner with Marriott on this, giving those existing customers a Strip outpost to use their rewards points and the Cosmo a large database to market to. It's not a player database but it is better than nothing.
The Cosmopolitan is joining Marriott's 'Autograph Collection'. View the other participating hotels here: http://www.marriott.com/autograph-collection-hotel/travel.mi