Over at ZDNet's Web 2.0 Explorer Richard MacManus rounds up all of the current WebOS offerings. A WebOS, of course, is "a software platform that interacts with the user through a web browser and does not depend on any particular local operating system," and MacManus counts six of them out in the wild, not including the fabled GoogleOS, and in the pull-quote says, "It wouldn't surprise me if one of the small startups I've mentioned here goes on to become the next Linux."