iPhone Application

I want to create an iPhone app (that can also be used on a regular computer). Basically, it's called IRecommendThisBook.com. To download it you must enter your email address which is sent to my database #1. Once it's downloaded, you can enter the BOOK TITLE, AUTHOR and optional is the ISBN # (if it could scan a bar code that'd be great but not necessary) also, they can enter the email address of as many friends at they would like to recommend the book to and press ENTER. This information is sent to my database #2. The system counts how many "votes" a particular book got. It also recognizes if someone says War and Peace that The War and Peace is the same book. I can then use this information to send out in a newsletter and recommend book titles. This application should also be able to be used on a regular computer too. And if they are offline then it stores whatever book they are recommending and sends the info to the database whenever they go back online.