Ca-ching! Apple has announced financial results for its fiscal 2010 second quarter that ended March 27, 2010. The company posted revenue of US$13.50 billion and net quarterly profit of $3.07 billion, or $3.33 per diluted share.

These results compare to revenue of $9.08 billion and net quarterly profit of $1.62 billion, or $1.79 per diluted share, in the year-ago quarter. Gross margin was 41.7 percent, up from 39.9 % in the year-ago quarter. International sales accounted for 58% of the quarter’s revenue.

Apple sold 2.94 million Macs during the quarter, representing a 33% unit increase over the year-ago quarter. The company sold 8.75 million iPhones in the quarter, representing 131% unit growth over the year-ago quarter. Apple sold 10.89 million iPods during the quarter, representing a 1% unit decline from the year-ago quarter.

“We’re thrilled to report our best non-holiday quarter ever, with revenues up 49 percent and profits up 90 percent,” says Apple CEO Steve Job. “We’ve launched our revolutionary new iPad and users are loving it, and we have several more extraordinary products in the pipeline for this year.”

“Looking ahead to the third fiscal quarter of 2010, we expect revenue in the range of about $13.0 billion to $13.4 billion and we expect diluted earnings per share in the range of about $2.28 to $2.39,” adds Apple Chief Financial Officer Peter Oppenheimer.