What does all that gibberish mean for GIMP?
Many highly requested features of the GIMP will be easier to do using GEGL. Layer effects, layer groups, and adjustment layers are quite easily represented (and efficiently calculated) using the DAG organization of GEGL. CMYK and high bit depth support will be easier because GEGL does not make the same assumptions about color spaces and data types that the GIMP does. The reusability of image processing operations means that plug-ins will be able to be designed in a much more modular way. The brush system will be able to become more flexible, especially when filter plug-ins are able to be used as procedural brush plug-ins.