I\'m trying to create a page browser by using a UIPageViewController in Interface Builder that allows displaying part of the adjacent pages (aka peeking). I\'ve
Like @davew said, peeking views will need to use UIScrollView. I too searched for a way to use UIPageViewController but couldn't find any resource.
Using UIScrollView to make this feature was less painful that I had imagined.

First: make a UIViewController, then in the viewDidLoad method, add the following code:
float pad = 20;
NSArray* items = @[@"One", @"Two", @"Three", @"Four"];
self.view.backgroundColor = [UIColor greenColor];
UIScrollView* pageScrollView = [[UIScrollView alloc] initWithFrame:self.view.frame];
pageScrollView.opaque = NO;
pageScrollView.showsHorizontalScrollIndicator = NO;
pageScrollView.clipsToBounds = NO;
pageScrollView.pagingEnabled = YES;
adjustFrame(pageScrollView, pad, deviceH()/4, -pad*3, -deviceH()/2);
[self.view addSubview: pageScrollView];
float w = pageScrollView.frame.size.width;
for(int i = 0; i < [items count]; i++){
UIView* view = [[UIView alloc] initWithFrame:pageScrollView.bounds];
view.backgroundColor = [UIColor blueColor];
setFrameX(view, (i*w)+pad);
setFrameW(view, w-(pad*1));
[pageScrollView addSubview:view];
}
pageScrollView.contentSize = CGSizeMake(w*[items count], pageScrollView.frame.size.height);
FYI, I used these util functions to adjust the size of the view frames; I get sick of manually changing them with 3+ lines of code.
I have wrapped up this code in a simple ViewController and put it on GitHub
https://github.com/kjantzer/peek-page-view-controller
It is in no way complete, but it's a working start.