This column highlights the most interesting and useful business and financial commentary on technology from around the Web. The Markets Are Open Link: Research In Motion Limited Adds 12% on Another Analysts Optimism “Research In Motion Limited (NASDAQ:RIMM) shares are up another 12% in the pre-open session after gaining about 35% in the past couple of weeks.   “This morning analyst at Goldman Sachs upgraded the stock to 'buy.' The brokerage firm lifted the price target by $7 to $16.”   TechNews Link: The iPhone 5 Clears Its Final Regulatory Hurdle For Launch In China “Things seem to be on ...