Did some hacking on the color managment stuff. While doing that it really annoyed the heck out of me that GIMP was not able to handle the embedded ICC profile in a TIFF image that was produced by PhotoShop...
As we all know annoyance is oftentimes the final kick that's necessary to start the editor and the compiler. So I added support for embedded ICC profiles in TIFF images. These are not stored as Gimp parasites and can of course be handled by the color manager plugin (this development version is not yet released to the public).