Fusion 7.x-2.0-beta2 includes new features for Responsive layouts in conjunction with the Fusion Accelerator module (7.x-2.0-beta1 or later). New sub-themes built with Fusion 7.x-2.0-beta2 (and later) starter themes will automatically support the Responsive features included in Fusion Accelerator.
Existing sub-themes (based on Fusion 7.x-2.0-beta1 and earlier) will need updates to their .info files to use the responsive options provided by Fusion Accelerator. Simply copy lines 69-130 of fusion_starter.info and append to your sub-theme's .info file to add support for responsive layouts.
In addition to the new features, the following issues were resolved: