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The folks at EyeSee360 have posted their GoPano Micro 360-degree lens for the iPhone 4 to kickstarter.com, a site that helps raise money to fund projects.
The GoPano device clips onto an iPhone and lets you take smooth 360-degree videos. It's much more than a party trick.
Startup Kogeto's Dot panoramic lens, a $79 clip-on device that works alongside an app called Looker, is coming to all U.S. Apple retail stores later this month.