Fablet

UPDATE: Be careful with Shoppad if you plan on switching to a responsive theme eventually. I ran into an issue with my mobile search results not working correctly, and the support wasn't fully able to help me.

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Shop Pad was the best option I could find to make my site mobile friendly without changing the theme. It has been pretty good, but I ultimately I am switching to a responsive theme to have more control and continuity between my mobile and desktop sites.