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Glasses-free 3D screens are the next big thing for entertainment

Glasses-free 3D does exist, but it's so expensive right now that manufacturers are holding off. However, there are some mobile devices out there that make use of the technology like Nintendo's 3DS gaming system and HTC's EVO 3D. (Downside: the 3D effects are a bit dizzying and not exactly perfect.) Why it's innovative: 3D entertainment is wildly popular, just look at all those 3D movies coming out. But wearing glasses to view 3D video is incredibly annoying. The current generation of glasses-free 3D devices aren't perfect, but they're a solid stepping stone.

The 15 Most Innovative Gadgets

Tech moves fast. Even we have trouble keeping up with the latest and greatest stuff. With every new smartphone, every new computer, every new chip, we get closer and closer to what will become the standard in the future. Wireless high-speed Internet everywhere? We're getting close thanks to LTE. Cars that drive themselves? Google is working on it. Appliances that sync with your smartphone? Android has you covered. We put together what we think are the best gadgets and technologies that are setting the stage for tomorrow's tech.