Goodsie Mobile setup can be found under Manage > External in the admin area. This feature allows you to control how your store is viewed on mobile devices such as iPhones.
Here, you can specify a mobile-only banner image, background image and product image size, as well as the toolbar color, which runs across the top of your store when viewed on a mobile device. You can live preview these changes as you select various options.
These settings will only be visible when a customer is viewing your store on a mobile device.