iOS Project Structure for Presentation App

• I'm gonna build presentation app, which will present a brand product.
  
• Presentation will have multiple slides (states) with common background.
  
• In some slides I can go back to previous slide

My questions:

1. Do I have to use View Based Application?
2. For each state (slide) should I use separate UIViewControllers?
3. What best structure for presentation app you would suggest?

Thank you!

iOS5 SDK introduces Storyboard. You should definitely look into this for your presentation app, here is a tutorial on Using Storyboard.