I was looking at it today and one thing jumped out at me in the comparison chart between the iPad version and the desktop: PRINTING IS NOT SUPPORTED ON THE IPAD! How is this going to beat iWork?
Just make sure you buy the refurbished products from Apple, and not other companies. I have bought several refurbs from Apple, including my wife's 16GB wifi iPad and never had a problem. I bought a refurb iPod from Best Buy online and had to replace the hard drive in it within 2 months.