I'm actually working on a project like this as we speak. However it will be in python/gtk initially, probably Qt when PR1.2 is available. Not wanting any money for it either.

Will see if I can post a preview soon. Probably by the end of next week. I have to figure out some stuff with regards to usability though, for example how do you display more than x columns? Implement scrolling? Etc. Will let you know how it goes.

Edit: The backend will be using SQLite3.