email templates for mobile customers

Have any of you developed an email template that renders differently (drops out graphics, etc.) if the user opens the email on a mobile device? If so, who did you work with?

Read CLICKZ.com article today re: email marketing in a mobile age with the stat "46 percent of U.S. adults owned a smartphone as of February 2012." Our web visitation is currently about 20% mobile users. Thinking we need to have a couple of new templates ready to go before our next season starts.