This post is to announce the availability of a Fancybox Macro which displays one or several images in a gallery featuring zooming, thumbnails and touch support in particular. Some other good gallery macros are available for XWiki already, however I was missing one with good zooming support and thumbnails. Fancybox exposes a variety of options that the macro itself may include as parameters in the future in order to ease customization.
The macro is available along the same license of Fancybox, which is GPLv3. Comments or feature requests are welcome.