Ouya: A charming but flawed $100 video game console

Today, video game systems are dominated by Sony, Microsoft and Nintendo. They make big, expensive, state-of-the-art gaming consoles that attract the world's top developers and the most intricate games.

But the fastest-growing video game segment has no use for all those bells and whistles. Smartphone and tablet games are cruder and simpler but are often as fun and innovative, and immensely popular with the average consumer who would never dream of shelling out $500 for a video game console.