I am posting this because, to me, the Wii is too young to have a price drop.
In Australia, K-Mart, in their latest catalogue is advertising Wiis for $359. That is a $40 price drop. K-Mart has had Wiis below $400 before but only in packages like "Ratitouille and a Wii for $450", but not Wiis just by themselves.
Its not like the Wii is selling poorly in Australia, I guess now that now there is more supply in Australia, Wii sales are really picking up.
You can see from the graph, the sharp upturn of the line around June. I guess the drop may just be a temporary, "Hook 'em in now for Christmas" drop. But it could be a sign of things to come.