Oracle hasn't won many friends in open source communities since its acquisition of Sun Microsystems and Sun's array of open source assets, including MySQL, Java, and OpenOffice. Oracle seems bent on continuing this trend with the growing Hudson open source project.
It's gotta be tough for InfoWorld's overworked editors to figure out how to recognize the best open source products out there. Open source has become so pervasive in IT that there aren't too many areas where there aren't at least a half-dozen interesting pieces of open source technology from software infrastructure, networking, development tools, desktop software, you name it. I'm not a part of the decision making process in these awards, but I have empathy for them and all the different products they need to consider.