iPhone - view PDF like in iBooks

Question

I have question about view for displaying multipage PDFs in my app. I have found solutions with webview but they lack ability to zoom and scroll between pages horizontally. Also

Answer 1

Update: 04 Feb 2012

Check out this project, it's opensource and very well made:

Project:
http://www.vfr.org/

Source:
https://github.com/vfr/Reader