Why should iBooks have all the fun? The US$9.99 HyperPDF app for OS X from developer NeoMobili lets you turn PDF pages nearly as beautifully. Use swipe gestures to move through pages in the app's easily accessible "reader mode."
That's not all you can do with HyperPDF. The app offers many of the same annotation features as Preview as well as a presentation mode (although you cannot as-of-yet combine PDFs or move around pages). In presentations, you can transform your PDFs into slides, using numerous built-in transitions to move from one screen to the next.
I gave the features a once-over and they all seemed to work as adve
