If you're a techno geek who's stuck in the sixties in terms of everything else, here's an application for your iPhone that you might think as "groovy": the iLava. The iLava from Gotham Wave Games would turn your iPhone into a Lava Lamp! Yeah, Baby!

Of course, the iLava is not just a wallpaper or screensaver, it's fully interactive. You can interact with that virtual blob of hot wax by pushing it around with your fingers or merge two blogs together with your fingers (like the pinching action when you're zooming pictures). Tilting your phone would change the direction of the gravity for the wax, shake your phone to make the blob wobble or you can hold down the screen of the phone to make the lava glow. Pretty cool. The iLava is available for download at the Apple app store for 99 cents.