After a successful launch of the iPhone 3GS, Apple is reporting that revenue increased 15 percent year over year in its third financial quarter, the most successful non-holiday quarter in the Cupertino-based company’s history. 10.2 million iPods, 5.2 million iPhones and 2.6 million Macs were sold during the quarter. The growth is mainly the result of the Twitteresque growth of iPhone sales, which grew 626 percent over the same quarter last year. Mac sales grew 4 percent over a year ago, with laptop sales jumping 13 percent year over year. iPod sales declined 7 percent during this period.

In addition to these sales, Apple recently announced that the 1.5 billion apps have been downloaded from the App Store since its launch a year ago.

“Looking ahead to the fourth fiscal quarter of 2009, we expect revenue in the range of about $8.7 billion to $8.9 billion and we expect diluted earnings per share in the range of about $1.18 to $1.23,” said Peter Oppenheimer, Apple’s CFO.

As is often the case, other big tech companies did not fare as well as Apple.

Yahoo!, which got some positive press today with the launch its new search page, saw its profits rise 8 percent after cutting almost 10 percent of its workforce earlier in the year. Yahoo! profit grew from $131.2 million in Q1 to $141.4 million in Q2, but the company continues to feel the woes of a decline in search and ad revenue.

AMD didn’t fare nearly as well as the others, seeing its sales drop 13 percent in the second quarter, mainly due to the decline in microprocessor sales. The chip maker, which has been struggling for the last two years, lost $330 million in Q2.

By Mark Alvarez