By | November 12 2012 12:12 PM

Apple is gearing up for what many expect to be a blockbuster holiday season, given how the Cupertino, Calif.-based computer company has released new versions for nearly all its best-selling items within the last two months, including new Macs, iPods, iPads, and a new iPhone. The latter device is expected to be the company's biggest seller during the holidays -- it usually is, with iPhone sales averaging roughly 45 percent of Apple's overall revenue -- but the company's 2012 model, the iPhone 5, has yet to go on sale in its second biggest market: China.