GIMP 'E' Graphical Library, is an image processing library based on GtkObjects. This library will be designed to handle various image processing tasks needed in Gimp initially, but should be useful to other apps as well.
The GIMP is moving towards becoming a tool for film industry. It's 16 bit development version is currently being used in film production by various special effects houses and there is a current movement to re-architect the GIMP to handle the new demands.