I have a 2009 MacBook Pro running OS X 10.7 with an Apple IR remote. Since I create my presentations with LaTeX, which generates PDF files, I cannot use the remote to control my presentations (it only works with Keynote out of the box, not with Preview).
Some searching around led me to this app that allowed one to extend the remote to other programs. However, this was last updated in 2009 for Snow Leopard, and it doesn't work with Preview on Lion. Some apps like Spotify, have dedicated addons/scripts that will let you do this (for that app).
Is there a way to get Apple remote to work with either Preview.app or Adobe Reader/Acrobat? At the very least, can it be made to simply do a left click and right click (i.e., Next → Right click, Prev → Left click), so that I can have the most basic navigation capabilities?