NVIDIA's Tegra 4 powered handheld looks a lot like a typical game console, but it isn't. You could say that its operating system sets it apart, or its knack for streaming PC games, but that's not it -- it's that Shield won't be sold at a loss. Although many consumer game devices eventually turn a profit, they often hit the market as a loss leader, herding gamers into a closed ecosystem and securing a revenue stream for the manufacturer -- every Nintendo, Xbox or PlayStation game made funnels
