PunchScrollView hosted on github is a ScrollView framework for iOS (iPhone, iPad and iPod Touch) which works like the Apple UITableView
[Update from WWDC 2012] Apple introduced the UICollectionViewController in iOS 6 which has the same purpose as PunchScrollView. Because it does the same things I will stop developing PunchScrollView in the near future.[/Update]

• Easy and fast implementation, almost like the UITableView
• Perfect for photo slideshows or many text pages
• Use the benefits of the NSIndexPath like you might know it from the UITableView
• Easy setup in combination with Core Data
• Helpful methods, i.e. jump or scroll to a desired page
• Avoid boilerplate code
• Save lots of memory with the use of dequeuing

The following code shows a simple scrollview with 3 sections and 3 pages

- (NSInteger)numberOfSectionsInPunchScrollView:(PunchScrollView *)scrollView
{
	return 3;
}

- (NSInteger)punchscrollView:(PunchScrollView *)scrollView numberOfPagesInSection:(NSInteger)section
{
	return 3;
}

- (UIView*)punchScrollView:(PunchScrollView*)scrollView viewForPageAtIndexPath:(NSIndexPath *)indexPath
{
	ExamplePageView *page = (ExamplePageView*)[scrollView dequeueRecycledPage];
	if (page == nil)
	{
		page = [[[ExamplePageView alloc] initWithFrame:self.view.bounds] autorelease];
	}

	page.titleLabel.text = [NSString stringWithFormat:@"Page %d in section %d", indexPath.row, indexPath.section];

	return page;
}

Recently I added UIViewController support to PunchScrollView. Just return a UIViewController and PunchScrollView will handle the caching and lazy loading itself
The following example demonstrates a simple usage with UIViewController

- (NSInteger)punchscrollView:(PunchScrollView *)scrollView numberOfPagesInSection:(NSInteger)section
{
	return 3;
}

- (UIViewController*)punchScrollView:(PunchScrollView *)scrollView controllerForPageAtIndexPath:(NSIndexPath *)indexPath
{
    return [self.childViewControllers objectAtIndex:indexPath.row];
}

For those folks, who are interested in the details, here we go with the properties, methods, delegate & datasource methods

or just go directly to github to clone PunchScrollView

Properties

Set the DataSource for PunchScrollView

id dataSource;

Set the Delegate for PunchScrollView

id delegate;

Set the padding between pages . Default is 10pt

CGFloat pagePadding;

Set a Vertical or Horizontal Direction of the scrolling

PunchScrollViewDirection direction;

Get the current visible Page

UIView *currentPage;

Get the first Page

UIView *firstPage;

Get the last Page

UIView *lastPage;

Get the current visible indexPath

NSIndexPath *currentIndexPath;

Get the last indexPath of the Scroll Suite

NSIndexPath *lastIndexPath;

Returns all UIViewController hold by the PunchScrollView

 NSArray *pageController;  

Initializer

- (id)init;
- (id)initWithFrame:(CGRect)aFrame;

Methods

Using recycled Pages, instead of allocating new pages
This Method returns a UIView which is in the Queue

- (UIView *)dequeueRecycledPage;

Refresh the ScrollView and its pages

- (void)reloadData;

This Method returns an UIView for a given indexPath

- (UIView*)pageForIndexPath:(NSIndexPath*)indexPath;

Scroll to a specified indexPath, can be animated, if set to YES

- (void)scrollToIndexPath:(NSIndexPath*)indexPath animated:(BOOL)animated;

Scroll to the next page, can be animated, if set to YES

- (void)scrollToNextPage:(BOOL)animated;

Scroll to the previous page, can be animated, if set to YES

- (void)scrollToPreviousPage:(BOOL)animated;

PunchScrollView Delegate Methods

Will be called if the scrollview changes the page

- (void)punchScrollView:(PunchScrollView*)scrollView pageChanged:(NSIndexPath*)indexPath;

Called when the page will be unloaded. We used to call “viewDidUnload” – but this method will be deprecated in iOS 6
Please destroy all your views in that delegate call for the controller. Otherwise your app will leak!!

- (void)punchScrollView:(PunchScrollView*)scrollView
             unloadPage:(UIView*)view
           forController:(UIViewController*)controller;

PunchScrollView DataSource Methods

Set the number of sections (optional, default is 1, if not implemented)

- (NSInteger)numberOfSectionsInPunchScrollView:(PunchScrollView *)scrollView;

Set the number of pages in the specified section

- (NSInteger)punchscrollView:(PunchScrollView *)scrollView numberOfPagesInSection:(NSInteger)section;

Return the page for a specified indexPath

- (UIView*)punchScrollView:(PunchScrollView*)scrollView viewForPageAtIndexPath:(NSIndexPath *)indexPath;

Return a UIViewController for the indexPath (optional)

- (UIViewController*)punchScrollView:(PunchScrollView*)scrollView controllerForPageAtIndexPath:(NSIndexPath *)indexPath;

Set the number of pages to be loaded lazy and kept in the cache (optional), Default is 0

- (NSInteger)numberOfLazyLoadingPages;