However, thanks to our friends over at Redmond Pie , we now have a clever way of downloading the latest version of Numbers, Pages and Keynote for free—at least until Apple discovers and patches the exploit. I tried this last night, and it worked as advertised. Step 1- Download and install the iWork 09 trial.
Keynote 2, a presentation creation program, and Pages, a word processor. A day trial was also made available for download on Apple's website.
Mac: What is iWork'? Full Overview