UPDATE, Friday, 6:45 AM: Looks like Research In Motion execs’ vague comments last night about their plans for the new Blackberry 10 system quashed investors’ initially warm feelings about the better-than-expected Q3 results. RIM’s stock price dropped nearly 17% shortly after the market opened on Friday. The company warned that it will increase its spending to promote the long-awaited update to the Blackberry platform in late January. CEO Thorsten Heins also said in a conference call that there’ll be new tiered service offerings, but offered no details. He told CNBC this morning that the transition to BlackBerry 10 “is going to be probably one-and-a-half to two years.”  (more…)