From the developer: "Mr. Who? is a versatile contact manager. The main features include the ability to sort your contact list by name, company, title, and category. The lookup (search) feature is fast and simple... you can usually find any name in 2 or 3 seconds! Mr. Who? has helpful features to remind you of upcoming birthdays and anniversaries. It will also help you to manage your contacts with call scheduling and logging of previous conversations or meetings. You can also create an unlimited number of mailing lists based on the primary contact list. Several reports are included with the product, but mailing lists can also easily be exported for use with other products."