Tutorial follows source code & has explanations along the way. This is perfect for beginners! I made this on my macbook. Allows custom tweets to twitter via iphone application. For help feel free to shoot me a message.
Note: this application is actually part 5 of the twitter tutorial.
Download source files visit Welcome to Fit to Rule? at Tubelo.com - Index Source: Dan, Pilone, Dan Pilone, Tracey Pilone, and Pilone Tracey. Head First Iphone Development: A Learner's Guide to Creating Objective-C Applications for the Iphone. Sebastopol: O'Reilly Media, 2009. Print.

YouTube - HD Guide: Create Twitter Iphone App w/ Custom Text input(XCode 3.2)Apple Tutorial Guide w/ Source