Couple of interesting KDE applications that I plan on making RPMs for. Krecipes is a recipe application that includes database look-up based on diets, calories, vitamins etc.. and does things like print shopping lists, calculate daily caloric intake, and give daily food suggestions based on diet type.
BasKet is akin to a tabular scratch pad that lets you drag and drop links, text, images, sounds, etc.. and do things like sort, arrange, and group them. My first request for BasKet will be a search function.