Once again the only unexpected item here is the fact that the Wii weekly share is well below 50%, whereas it hasn't been for a long while, until the last few weeks anyhow.
Are we getting the first glimpses of the Wii's week-to-week sales peaks, and a gradual downhill slope after? I don't think it actually possible, at this point, for the Wii to slide to "2nd" place, but it seems as though its lead has stabilized, in terms of marketshare -- it may even be dropping... which of course means that the HD consoles are still gaining momentum.