Thanks for the feedback. The position of infoboxes is indeed a key concern, and being actively studied. One of the points of pushing this article prototype live to a wiki that has well-developed, content-rich infoboxes was precisely to further study infobox styling and positioning.
Remember, this isn't even a beta design: it's full-on prototype.
Your comments will be of tremendous value in shaping the end results. So keep 'em coming!