How to enable mobile template
1.Log in to Blogger in Draft (opens in a new window).
2.Go to Dashboard > Settings > Email & Mobile.
3.Click the MOBILE PREVIEW button to check how the mobile version of your blog would’ve looked like.
4.Select “Yes, On mobile devices, show the mobile version of my template.” radio button
5.Click Save settings.
That’s all now your blog will appear perfectly in mobile browser!
Template support: Google says that the new feature only supports 12 existing templates (6 variants of the Simple template and 6 variants of the Awesome template) and that all the other templates will be rendered as the Simple template. The mobile version drops the sidebars and most of the gadgets, shows small excerpts from the posts on the homepage, hides the comment form (but you can still post comments), resizes images and videos, adjusts fonts and converts AdSense ads into mobile ads. Unfortunately, you can't customize mobile templates, at least not yet.