UNIX for Dummies Questions & Answers

I am a complete noob when it comes to coding... If I could get some help with coding an iPhone or iPod touch application so I can learn the basics, that would be great. For now I want to make something simple that will take me only an hour or so... Basically, I'm not sure what to do... I started with this canvas...

Code:

//
//  My first app.h
//  
//
//  Created by My Name on 3/31/08.
//  Copyright 2008 __MyCompanyName__. All rights reserved.
//

#import <UIKit/UIKit.h>


@interface My_first_app : NSObject {

}

@end

What do I do??????????????????