Lionsgate executive Curt Marvis has told Variety that Wii as "a huge opportunity for his studio to distribute movies and TV shows," and he thinks it will happen sometime this year in the US.
"The thing that is clearly a force in digital are the game devices", he said. "I think when we see the Wii come into the market with the ability to stream movies, which I think is maybe going to happen as soon as this year. I think that’s going to be a big marketplace for digital distribution."
A limited video service is currently in the works for Wii in Japan, so if all goes well it's a possibility for other territories.
There are currently 16.2 million Wiis installed in the US, compared to 12.8 million Xbox 360s and 6.3 million PS3s.