Keyring is one of the few applications I've been using since I first got a SL-5500. It has been reliable in all the time that I have used it; there are only a few things I would like to change.
Over the last few months I have downloaded the source, made a few minor modifications and built it for the Sharp ROM. Click to view attachment
I have also ported it to QT3. In the future I hope to port it to QT4.Click to view attachment
You can download the ipk from my feed or via my homepage.