The App Store Genius is a computer that searches the App Store for apps similar to those you’ve purchased before. To turn it on, go to the Genius page in the App Store and follow the prompts to turn Genius on if you haven’t already.
Once Genius is activated, you will be presented with a list of apps you might like, coupled with one screenshot previews and a buy link. Additionally, you can view iPad versions of apps you have already purchased by going to the iPad Upgrades tab.
Have fun with your iPad!