I think that Android doesn't need advertising. It's something that people mostly don't care about. However, they do care about quality, which Android may provid

I think that Android doesn't need advertising. It's something that people mostly don't care about. However, they do care about quality, which Android may provide for handset producers. So maybe, Google is not even trying to put effort in Android advertising (for masses), but lets thi job to specific device manufacturers. For example, HTC Hero is advertised quite a lot.