The guys that brought you the famous OS7 Now Up-to-Date, followed by BusyCal, have done it again with a contact application on steroid: BusyContacts.
I have been using the beta version for the past few weeks and I must say it turns out to be a very stable, useful and easy to use piece of software. Much easier to set-up and deal with than CRM software such as Daylite and others. The software is now out of beta and V1 is available to buy…and you do get a reduced price (“Sidegrade” they call it) if you are a BusyCal user!