Dan Houser has spoken. The Rockstar cofounder has stated that the Grand Theft Auto on the Wii would not feel natural as compared to it being on the DS. To quote Houser:

“It really was that the DS felt like it had a lot of interesting challenges that would be totally different from what we’d done in the past. The stylus and the chance to use minigames in that way was really interesting and exciting to us, and we thought we could integrate seamlessly between those two modes.”

I hope they change their mind on the Wii. The console needs a game like GTA in the mix to draw the non-casual crowd. I’m just saying that with all the casual games available for the Wii, a GTA game would be healthy for the Wii. If Nintendo thinks that a GTA game would ruin Wii’s wholesome image, then make one for the Wii with a built-in parental control mode, a parallel sanitized version.