There are lots of magic tricks you can perform with your smartphone, usually using some combination of real-world objects (like, say, cards) and an app.
For example, with Card2Phone, physical items like coins and cards seem to disappear into an iPhone, then reappear again in the real world.
But with iBalance, the phone itself becomes the illusion. This new trick, designed for amateur and professional magicians alike, makes any smartphone appear to balance in an impossible way. Take a look:
As you can see, it's a pretty good piece of prestidigitation. I've dabbled in magic since I was a kid, and I've never seen anything quite like this.
iBalance promises to work with just about any smartphone and even most regular cell phones. It's available directly from Penguin Magic for $29.95, a price that includes a DVD tutorial.
Whether you're into magic or just looking for a cool way to impress people at parties, this is worth a look.