Does membership give me access to alternative/premium Simplepress themes. If no then where can one buy alternative/premium Simplepress themes? I saw you have a different mobile theme than what comes with a defaulp SP installation.
yes, a membership gives you access to premium themes and plugins… currently, there is only 1 premium theme, the mobile responsive theme you referred to, though a second mobile responsive theme will be released soon… there are 20 or 30 premium plugins that extend the functionality of simple press…
alternatively, we do offer a custom theme (and plugin) development service where we can customize a theme to your specifications… it can be just colors or different layout or functionality changes… if you want to discuss a custom theme, please use our contact form and let us know what you want and we will get back to you to discuss specifics and work a quote for you…