What are you doing to get users on a mobile site you are marketing for a client? Are you:
-using web applications on popular social networks
-using mobile web SEO tactics
-traditional media and news outlets
-nothing (just hoping that customers will find the m.yoursite.com or yoursite.mobi)
Has something worked better than others? A demographic that has been more receptive?
I think this a realm that a lot of us are going to be asked to participate in in the coming future, so the more we know the better. With something as new as mobile marketing and advertising, its good to see what the pioneers are doing to make their clients possess a successful presence in the mobile world.