Contacts-Heavy is already in production on the site i wrote it for. I have called it "Contacts". It is still under developement and certainly not "generic" yet, though the basic functionality is there. I am hoping that i will have a generic alpha release by August 15th that isn't specific to our needs... but the way things have been going here that date may be pushed back. I don't have anybody helping to develop it, though i have an offer to help bug fixes once i get an alpha release ready, if you would like to help in its development let me know.