How the world turns – Andy Rubin, who created Google’s Android, has secured investment from Google’s fearsome rival Amazon, for his new handset venture. Amazon’s investment arm, Alexa Fund, is part of a $300m round secured by Rubin’s Essential Products, whose PH-1 AI-driven handset has suffered a string of delays, but is reportedly set to make its appearance in good time for the holiday season. Other investors include Chinese internet and ecommerce giant Tencent, and Access Technology Ventures. The PH-1 will run Android and will be exclusive to Sprint in the US, but will be available unlocked via Amazon and Best Buy. It is expected to be a high end device in the same bracket as the Google Pixel or…