This voice-activated, solar-powered treehouse will even serve you a beer

How about a treehouse that works with voice commands, runs on solar power, and alerts you when you're running out of beer? That's what one engineer from New Zealand, Jono Williams, has built near his hometown. It's called the <a href="http://www.theskysphere.com/" target="_blank">Skysphere</a> and it cost its creator nearly three years of work and over $50,000 so far.