Will you release GIMP for Android or iOS devices?
Apps for mobile devices imply a different approach to designing interfaces. Since most of GIMP's source code is related to the user interface one way or another, it means that we would have to design and then develop a whole new application. Given the current manpower, we'd rather focus on delivering a great image manipulation program for desktop users.
However, we are interested to consult 3rd party developers willing to make a free/libre GIMP-branded image manipulation program for Android. As for iOS, please note that GIMP is licensed under GNU GPL v3+ which conflicts with Apple's Terms of Service. For a full story, please read this article by Richard Gaywood.