Even as news of Google's acquisition of Agnilux is still making its way around the Web, another Google acquisition may be in the works, and this one would be pretty huge, according to a new report. Google's supposedly in talks to buy travel software specialist ITA Software for $1 billion. A little background information: ITA Software has supplied technology to important companies like American Airlines, Bing, Continental Airlines, Kayak, Orbitz, Southwest Airlines,