OOK, Once I Owned a Kestrel, is now being revamped. Previously, it was to be released solely on iPhone and iPad. Now, iPhone, iPad, and other mobile devices are dropped and it will be primarily a desktop project. Welcome to the new OOK. Enjoy.
I have been creating a scalable GUI for OOK. This image shows my progress - all of the interface elements are part of the same loaded image, then I treated it as a texture atlas and drew only portions of the image at a time.