PARIS/PALO ALTO Apple’s stock may be sliding as investors fret about growing competition, but store visits and interviews with smartphone and tablet shoppers in 10 cities around the world suggest consumers share little of that negativity. With tablets and other mobile devices the gadgets of choice this holiday season, Reuters canvassed over 70 shoppers and store employees across Sydney, Seattle, Palo Alto, Shanghai, Bangalore, Singapore, Paris, London, Mexico City and Boston for insight into what does and doesn’t beckon. Apple stores and electronics retailers were bustling last week, in contrast to the Microsoft pop-up stores in the United States promoting [...]