Operator: Good day, everyone and welcome to the Apple Incorporated Fourth Quarter Fiscal Year 2012 Earnings Release Conference Call. Today's call is being recorded. At this time, for opening remarks and introductions, I would like to turn the call over to Nancy Paxton, Senior Director of Investor Relations. Please go ahead, ma'am.
Nancy Paxton - IR: Thank you. Good afternoon, and thanks to everyone for joining us. Speaking today is Apple's CFO, Peter Oppenheimer; and he'll be joined by Apple's CEO, Tim Cook; and Treasurer, Gary Wipfler, for the Q&A session with analysts.
Please note that some of the information you'll hear during our discussion today will consist of forward-looking statements, including without limitation, those regarding revenue, gross margin, operating expenses, other income and expense, stock-based compensation expense, taxes, earnings per share and future products. Actual results or trends could differ materially from our forecast.
For more information, please refer to the risk factors discussed in Apple's Form 10-K for 2011, the Form 10-Q for the first three quarters of fiscal 2012 and the Form 8-K filed with the SEC today along with the attached press release. Apple assumes no obligation to update any forward-looking statements or information which speaks as of their respective dates.
I'd now like to turn the call over to Peter Oppenheimer for introductory remarks.
Peter Oppenheimer - SVP and CFO: Thank you, Nancy. Thank you for joining us. We are pleased to report the results of our fourth fiscal quarter. We established new September quarter records for iPhone, iPad and Mac unit sales leading to our highest September quarter revenue and earnings ever.
Revenue for the quarter was $36 billion, representing year-over-year growth of 27%. That's a $7.7 billion increase over the prior September quarter's result and was driven primarily by strong growth in iPhone and iPad sales. Operating margin was $10.9 billion, representing 30.4% of revenue. Net income was $8.2 billion, increasing 24% over the prior September quarter's result. The quarter's net income translated to diluted earnings per share of $8.67.
Turning to the details of the quarter, I'd like to begin with our Mac products and services. We sold over 4.9 million Macs, establishing a new September quarter record. This represents 1% growth year-over-year compared to IDC's latest published estimate of an 8% contraction of the global personal computer market in the September quarter. Portable sales grew 9% year-over-year and represented an all-time high of 80% of Mac unit mix. Thanks to strong sales of MacBook Pro and MacBook Air.
Earlier this week, we unveiled a stunning new design for iMac, the packs high performance technology and a brilliant new display with reduced reflection into an incredibly sleek aluminum and glass enclosure. We also introduced an even thinner and lighter version of our most popular Mac, the 13-inch MacBook Pro featuring a Retina display with over 4 million pixels and all flash storage. We began and ended the quarter with between three and four weeks of Mac channel inventory, which is below our target range of four to five weeks.