Last Slide Viewed Hyperlink is broken on export?

Hi All,

I'm making a quick mockup of an iPhone app, using Keynote. I'm faking the interaction by using hyperlinks to jump around from screen to screen. I've got one screen that is accessible from many places. So, I have a back button that is hyperlinked to "last slide viewed". Everything works great when I play it in keynote. However, if I export the deck as a PDF, all of my hyperlinks work except for the "last slide viewed" hyperlinks. It seems that PDF is only smart enough to follow links that are hardcoded, not calculated based on navigation history. Does anybody know of a work around to this? I need it to work as a PDF because I want to test out the interactions on the phone directly. Short of Apple releasing a proper Keynote playback engine for the iPhone, PDF is my best bet. Exporting it as a Quicktime with "hyperlinks only" works on the mac, but the iPhone treats it as a movie without navigation, and just plays through the deck from beginning to end.

Thanks!