I dont think Wii will sell more then 2008 in the future. It was a record year. I think Wii will be with Zelda maximum 1 Mio over 2009 otherwise they would be down yoy.
Wii: 85 Mio 2010
Ps3: 45 Mio 2010
360: 47 Mio 2010
DS: 147 Mio 2010
PSP: 61 Mio 2010
Ltd:
Wii: 125 Mio
DS: 175 Mio
360: 70 Mio
Ps3: 83 Mio
PSP: 70 Mio