Here's a development Irresponsible Pictures got to before the rest of us -- the current top 10 list in Japan consists entirely of properties licensed in North America by Viz. This is important to note as it underlines both the completeness with which top Japanese serials are licensed now, and how Viz is taking advantage of its corporate set-up to grab major titles. In fact, the latter is what conventional wisdom holds will be one of the terms on which one crucial aspect of the fight for North American manga market share will be fought: Viz's culling of major titles versus Tokyopop's development of various lines.