SQUIB: a : a short humorous or satiric writing or speech; b : a short news item. (Merriam-Webster)
This Tech Squib proves it is possible to use your iPhone to play with your balls. Sorry. But there it is.
Sphero calls itself "the world’s first robotic gaming system." Put in its simplest terms, a Sphero is a robotized. mobile ball that can be controlled via your smartphone and Bluetooth. That allows you to drive the little ball around with the dexterity of your own two hands via remote control.
From there, what you do with a Sphero is up to you. You can guide it around and irritate the cat. You can put a hat on it, yell "Decapitated head!" and scare grandma. You can stick caramel to it and see if you can scoot the treat across the floor without getting it dirty. Knock yourself out.
If you lack ideas, the manufacturers offer a few games via Sphero apps available online. There's 18-hole Sphero Golf. Sphero ColorGrab allows you to test speed and reflexes with a multiplayer tabletop game. It's also waterproof, so take it in the pool come summer.
Sphero is available at Target, Apple Store and Brookstone for $129.