One thing that worries me is that they said Chinatown Wars sales might influence the decision on future GTA for Wii.
1UP News
GTA: Chinatown Wars Will Be Testbed for M-Rated Games On Wii And DS
Take Two says they will be doing "a lot of learning" when it hits in March.
By Kat Bailey, 12/18/2008

The Wii is better known for Carnival Games than it is for Manhunt 2. But things may change after Grand Theft Auto: Chinatown Wars. At least a little.
Stephen Totilo over at MTV Multiplayer writes that Take-Two sees Chinatown Wars as something of a testbed for mature games on the Wii and the Nintendo DS. And if it's successful, we may indeed be seeing a lot more like it.
"Frankly, even the M-rated content that we think is much more appropriate for the PS3 or 360, we have to look at the Wii as a viable platform across all our labels," said Take-Two CEO Ben Feder in a financial earnings call. "You just have to because you can't ignore the installed base. You just can't. We're going to do a lot of learning with GTA: Chinatown Wars on the DS in terms of bringing that kind of content to a Nintendo platform."
Take-Two has previously brought games like Bully: Scholarship Edition and Manhunt 2 to the Wii. But neither are quite as enticing (at least financially) as the prospect of a GTA designed specifically for the Wii, as Chinatown Wars was for the DS. So if you think stylus-driven drug dealing games are a good idea, go on and pick it up in March. You may be happy you did so later.