Wii mania

Nintendo shipped Globally four million Wiis of which in Europe nearly none are left int the stores, North America and many other areas suffer under the same problem. Four million Wiis gone almost instantly people left wanting more because the market was not covered sufficiently. Nintendo expects that all Wiis should be absorbed by the market by today, and states with some luck (for the consumers) Wiis will suffice until Sunday.
This extreme boom does make the Wii a rapid starter and is likely to put it into direct competition with the current sales leader the XBOX 360.
Yet there is still some ground to cover since the XBOX 360's sales are close to 20 million units sold Globally.

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Wii shortages frustrating gamers (BBC)