Key references from the article:
"Apple holds about 21 percent of the retail PC market in the U.S.; analysts expect that figure to increase significantly this year and into 2009. Jobs indicated that Mac growth for the last four quarters is three times overall PC industry growth."

"Apple’s introduction of new iMacs with 1394b this week demonstrates that the 1394b standard, also known as FireWire 800, is gaining significant momentum, the 1394 Trade Association said today. "

"Apple CEO Steve Jobs highlighted the presence of FireWire 800, indicating that 1394b is now on all iMacs. The new models each run on Intel Core 2 Duo processors with clock speeds of 2 GHz and 2.4 GHz, faster than earlier models. The system bus is also faster than in previous iMacs—800MHz compared to 667MHz. The aluminum enclosure for the iMac conforms with Apple’s Mac Pro and Mac mini products."

"Apple’s decision to incorporate 1394b into all of its iMacs is another indication of increasing momentum for the ‘b’ version of FireWire," said James Snider, executive director of the 1394 Trade Association. "The storage product designers set the pace by adopting FireWire 800 for hard disk drives, and now, with this announcement from Apple, 1394b is in the mainstream."

You can read the article in full at 1394 Trade Association Press