There isn’t much in the way of big mobile news this morning (at least not yet), so I wanted to direct your attention to this thought-provoking piece from Barron’s yesterday about why shares of Research In Motion dipped in the wake of Nokia’s reduced outlook. Some believe that the threat of increasingly inexpensive Android phones could be a growing problem for RIM, just as it was for Nokia. But Nokia’s difficulties in transitioning from one operating system (Symbian) to another (first MeeGo, now Windows Phone) could bode ill for RIM, which is in the process of moving from BlackBerry OS to QNX. RIM will have to make that transition flawlessly — and quickly — if it wants to retain its current stature.