Nexus 6 returns via Motorola, ships early next year

Since being launched in early November, the Nexus 6 has had trouble staying put. We can't find it via Google Play (reliably), and carriers aren't guaranteed to have it, either. AT&T famously pulled the Nexus 6 from their rotation due to a software glitch, and Verizon isn't even trying to make a home for Nexus. Even when it is in …