I think there is/was a plan to build a pedestrian bridge that connects all three properties in that neighborhood. That would actually be a nice attribute that opens up all three places to everyone staying at any one of them.
I dont know how the resorts feel about it considering they are all owned by seperate entities. Maybe they dont want to share their customers with their neighbors. Right now it not convenient to walk across the street from Palms to RIO or Gold Coast.