WPJaipho extends native WordPress image gallery and NextGEN Gallery with optimized support for mobile users
Download the plugin from WordPress.org, and install the plugin.
Activate WPJaipho after the installation.
Optionally - visit Settings page for some modifications.
After the activation, any page containing Gallery made on WP Media Library or NextGEN plugin will work out of the box, transforming the gallery pages into mobile optimized for all iPhone and iPad visitors on your site.