by Anthony Duignan-Cabrera, for Portfolio.com

Is there an e-reader on your gift list this year? It wouldn’t be a surprise—the technology press touts that the 2009 holiday shopping season (actually, all of 2010) will see the ascent of the e-reader as the ultimate mobile accessory, delivering novels and newspapers to a public clamoring for convenience

Once a boutique, almost novelty device, the e-reader market is steadily filling up. According to an August report from the Association of American Publishers, electronic-book sales increased 177 percent, to $96.6 million, over 2008 numbers.

Industry pioneer Sony and its upstart rival Amazon, with its Kindle series of devices (this year, the company is believed to have sold three million units), must now battle for market share against iRex Technologies’ iRex DR800SG, the soon-to-be released Alex from Spring Design, and offerings from Barnes & Noble. (more…)