Capture Lead to Booked Appointment

I co-own a small specialty contracting company and we have been using the iPad since its inception for project pic's, to sales presentations to project estimates. I am now going to split off and start a small division doing something very specific. New company, no overlap at all. Is there a iPad app that can allow me to capture a lead from a phone call where I could book an appointment with the prospect all from my iPad and have the appointment populate into a specific schedule? I will be on the road most all the time so my office phone will be forwarded to my iPhone. Prospect calls, wants to meet for a quote, I open the app, take their info, and book and app't which populates to a schedule. It would be great if after that prospect becomes a client, I could somehow use the collected info to dump into say a database system or Quickbooks for the accounting side of things. FYI, I plan on having a all Apple product based computer system. iMac, iPad, iPhone and Quickbooks for Mac.
Any help would be great and much appreciated

HP

If you ever get to capture leads from talking face-to-face with prospects, consider VeriScan PRO HD app. It is based on ID (such as Driver License) scan.