Yesterday, Google announced on their official blog that they're pulling the plug on Google Wave--an emailing, instant messaging, and picture-sharing progeny, that allowed users to communicate real-time to share documents, videos, and what they had for lunch. If you haven't heard of Google Wave, first announced last May, you're not alone. That's one reason Urs Hölzle, Google Senior Vice President for Operations, cites for the Wave's demise: