For those that have not yet used it, the App Store has a little application called Keynote Remote, which can be used to control a slide deck that you’re going through.
Once you’ve installed the application on your iPhone simply open it and click on the New Keynote Link… dialog (also in the Settings pane of the app on the iPhone). You’ll see a Passcode. Open Keynote, from the Keynote menu, click Properties, then click on the Remote icon in the Keynote Preferences toolbar. Then click on the check box to Enable iPhone and iPod touch Remotes, click on the remote you will be pairing to your Keynote installation and then click on the Link button. Once the link is successful open up a slideshow on your computer and then click on Control Slideshow on the iPhone. You’ll then be able to swipe the slides to the left in order to page forward through your slide deck.
Overall, this reduces the number of devices that we travel with by one for those of us who present and typically travel with remotes just for the purpose of freeing up our hands to wildly gesticulate while speaking (often knocking microphones and Dr. Peppers across the room onto poor unsuspecting and sleeping parties).
