This column brings you the most interesting and useful business and financial commentary on the world of technology every day. ZDNet Link: Google's Q4 Earnings: Signs of an Arms Race Ahead? "The search giant is expected to report fourth quarter earnings of $10.52 a share on revenue of $12.36 billion. However Google (NASDAQ:GOOG) indicated last week that Wall Street figures may not account for Motorola Home as a discontinued business. That unit was sold to Arris (NASDAQ:ARRS) in the quarter. Translation: Wall Street estimates are too high." "Simply put Google's typically strong fourth quarter will be muddled by Motorola's (NYSE:MSI) expenses ...