Satya Nadella made a good first impression in his first press conference as Microsoft CEO. Waxing tech talk on ubiquitous computing, while tossing in a quote from T.S. Eliot, he cut a polished, relaxed, articulate figure in introducing Office for iPad. As press conferences go, it was a modest affair. Tight script, flawless demo, nice venue — something you’d expect from Google, Facebook or Yahoo.