hexXYZ- the developer who fully doced how HENkaku works now also enter Wii U scene. He is working hard in researching Wii U and has released a custom firmware developer framework to provide users a friendly CFW solution for the Wii U called hexFW.
According to hexXYZ, smealum’s iosuhax is the basis for the firmware patching framework which aims at creating a fully functional and customizable Wii U CFW. Yellows8’s wiiu_browserhax_fright will be used as the main entry point to achieve userspace code execution. The exploit is compiled using a stripped down version of the libwiiu project and is triggered from the Wii U’s Web Browser.
News source: Anatomy of a Wii U: hexFW