Konkreet Performer: A gorgeous multitouch MIDI controller that lets you make music by manipulating a shapeshifting geometric form. Basically you'll never be closer to being Daft Punk. $25
Rome: Virtual History: History's rad. Ancient Rome especially. Use this edumacational app to explore a fully immersive model of Rome back in its hey day—you might actually learn something! $10
Luminos: A vast library of gorgeous 3D renders of all sorts of space objects—you can zoom to over 2 million stars, galaxies, nebulae, asteroids and the like. $10
NHL2K11: The most realistic tablet hockey experience on the iPad yet! Until 2012 rolls around! $5.