UICollectionView rocks.
IMHO, It was the best addition to iOS 6. Why?
Because implementing grids pre-iOS 6 was a pain. It caused a lot of hair-pulling and cursing at monitors.
UICollectionView brought the zen back :-).
We have been playing around with it here at App Design Vault. and decided to implement a Magazine rack for our newest template.
It is called Magrack and I'm sure your apps will look even cooler with this.
This is a demo of an iPad App Design Template from App Design Vault.
The full version has a Photoshop PSD to help you tweak the template and a sample XCode project to show you how to design your apps.