In 2010, we saw social networking skyrocket in popularity. We embraced a new category of tablet computer. And we rushed to new gaming systems that let us play video games without a controller.

But in the technology world, not all valleys are made of silicon. Whilethe highs were high for the tech winners this year, the low points were equally low.

Even tech titans such as Apple and Google had some rough moments in 2010. And some ambitious ideas that must have made sense behind closed doors just didn't translate well to the real world.