You can choose different backgrounds and fonts. You can also export your cards and share them via the built-in Dropbox support. The latest version sports AirPrint for those times when only hardcopy will do.
We know President Obama uses an iPad, so I put together a mock State of the Union presentation he might deliver!
The app is elegant, and takes full advantage of the iPads real estate, in portrait or landscape orientation. If you find yourself giving presentations or just want a virtual way to keep notes, that is reminiscent of old school index cards, check out Index Card.