Apple's stocked ended Wednesday at $558 a share, a five-month low despite a slew of recently-announced new products and a strong and popular holiday lineup. While the company's ability to deliver yet another record quarter in fiscal Q1 2013 is not seriously questioned, investors and analysts appear to be nervous that Apple is not doing enough to stay ahead of the competition, and some have voiced concerns that the "next big thing" is not more obviously underway to give Apple another avenue of continued growth.
