Will New Super Mario Bros. Wii become the fastest selling game to 20m sold?

[nordlead]

Update

Black Friday week sales are in and there are 54 weeks of sales reported. There are 6 weeks of sales left with 2.4m units left to go. Or 400k/week. With the new bundle and last weeks sales of 600k it is looking more likely that NSMBWii takes over the crown.