Apple CEO Tim Cook took the stage Tuesday at the Goldman Sachs Technology and Internet conference. Though--unsurprisingly--he spilled no Apple secrets, Cook did manage to leave room wide open for Apple to introduce a lower-priced iPhone, and reiterated some common company tropes about its focus and goals.Related StoriesApple's Tim Cook's busy day: 7am keynote then 2,000 mile flight to sit with Michelle ObamaSamsung exec says Apple battle is damaging innovation
