Marissa Mayer, who keeps Google’s home page pure, understands that less is more. Other tech companies are starting to get it, too. Here’s why making things simple is the new competitive advantage. I’m snuggled under the covers with Jon Stewart and the remote. The “Evolution/Schmevolution” skit is funny, but it’s been a long day, and I’m fading fast. The promise of technology is that I’m one click