The Wii wil never get the kind of third party support that the PS2 had.

[Mr Khan]

It's a combination of momentum, brand awareness, and creative stagnation. 360 and PS3 development (originally quite separate, but merged together for financial purposes) were well underway when those consoles launched. Strong support was there from day one, whether the consoles succeeded or failed. Very, very few publishers were looking seriously at Wii at all (SEGA and Ubisoft are two i can think of) from the outset.

 

Obviously things went as they did, but the establishment of the industry saw no reason to change with it. They had their audience on PS360 locked down, they saw Wii's success beyond that of the GameCube's (e.g., success that didn't come from Nintendo themselves), as purely coming from foreign or new audiences. The majority of developers make the safe bet because they can. Their success exists on PS360, and it takes effort that they simply would rather not employ. That's why even most of the serious 3rd party support comes from 3rd and 4th string teams.