The Wii has some definite potential for development, but quite frankly the effort/desire just isn't there. It requires a totally different approach to making the controls worthwhile.
But honestly, the games for the Wii as a whole are just bleh and even the 'good' ones don't really stand head and shoulders above versions of the Gamecube ones. (Super Smash Bros I'm talking to you).
This generation will go down as the generation of the Multi-Platform. Where development costs became so high, that much of what drove the success of previous generations (Exclusives for PS2 for example) became the undoing of a monster player and leveled the playing field.
The Wii just won't get many quality games IMHO. There is too much time and money to sunk into PS3/360 games that there is little time for Wii games. Additionally, there is more money to be made on 360/PS3 with DLC.
They can keep pushing out essentially shovelware for the Wii and much of the 'casual' ownership of the Wii will gobble it up regardless with minimal effort.
