There was an article on this program in the local paper today. The article also states the Rio participates and that Harrah's plans to expand to all of its properties by the end of the year. However, note that
there is a limit of 50 lbs but no breed restriction.
http://www.lvrj.com/living/strip-hot...107896889.html
There are a few restrictions. Dogs are allowed to be walked through designated common areas so long as they are on leashes and accompanied by owners. If dogs are left alone in a room, they must be crated. The hotels have crates on hand for rental.
Guests pay $20 extra each night for the Rio and Imperial Palace, and $25 extra a night for Caesars. The cost includes several in-room amenities, such as food and water bowls, a mat, disposable waste bags and dog treats. It also covers the cost of maintaining and preparing each pet room.