I think you all know how much I love this chart, but we sure have interesting data this time. Last year, September was a sign that the HD-combo would combine to gain against the Wii during the holiday. Sure enough, as December and January rolled past, the gains against the non-HD system were substantial.
Now, as the Wii has reduced that lead to its previous lowest-ever, the signs that this year might be a repeat of last are quickly fading. No cautious uptick, no static months in late summer, just slow, steady growth of the Wii against the HD set.*
*This may be relevant to publishers looking at how to distribute multi-platform titles but should be noted that it does not take into account obvious audience differences. This chart is more a symptom of the current market and the struggle of niche-hardcore audiences (males 14-32) against a larger, less homogeneous one.