new contact manager like datebk6 needed

[Misterpipe]

I am a contractor and would welcome an app that would fill this need. I need a customer link in to my calendar so that when I see my customers appointments I wont have to search the contacts to find the address of the appointment. I had a palm with an app called datebk6 by pimlico that was the bomb you could link the calendar to the contacts and switch between the two so when you see the appointment it is easy to switch to the address. Now I have to put the info in twice to have it readily available. I have thought of going back to the palm for about two seconds but love the droid. Please someone smarter than me write an app that does this and I will pay you for it and so will many other people and you can support your wife in the manor she is accustomed to.
Thanks,
Tom