our latest templates (every template that is based on Gantry framework) adds at least basic support (built into Gantry framework) for mobile platforms. You can always visit our demo site with your mobile phone to see how the templates looks in it. Be sure to access specific template path and not general demo.rockettheme.com (just access URL of each Home page which you can see in the browser window when you hover over Home page link)
I don't have a mobile phone to test these. From what I can tell, all your templates use the Gantry framework. Does that mean that every template you sell is optimized for mobile? Does this include iPhone, Android, Blackberry, etc?