TechnologySome co-workers and I gathered in a conference room at AARP Headquarters to watch Steve Jobs unveil the new version of Apple’s iPad 2. While the conversation naturally circled around all the new features, and how some of us were going to buy on the first day, our chatter came to the topic of competition pushing back.  As if on cue, Nielsen announced the next day that the market share of Google’s popular Android operating system for smart phones had …