We've seen a few different patterns for developer support on Wii.
With Ubisoft, we saw 2 marquee games at launch, followed by a bunch of crappy ports, and now a return to quality games.
With smaller companies and budget publishers, they were behind Wii right away. Majesco doesn't publish a lot of games, but right now most of them are for Wii and DS.
With almost everyone else, we've seen no support lead to crappy ports lead to exclusive new IPs and high quality content.
Maybe the best example is EA. They brought hardly anything for launch, they brought mostly ports for months afterwards, but for the second half of the year they are bringing MySims, Boogie, MoH with 32 player online, Madden and FIFA with exclusive content and Mii support, etc.
Rockstar seems to be in an earlier stage. All they really had coming was Manhunt for a long time, and now they're scrambling to get more Wii games out there. They're in the port stage. The Table Tennis port will be more successful than the original if they nail the controls, plus it gives them a good idea of how much they'll have to nerf their RAGE engine if they want to bring a delayed GTA4 port to Wii.
Don't be surprised when these ports give way to more original content from Rockstar. GTA is such a huge series that even a spin-off for Wii would be huge. A quality GTA spinoff could probably sell 4-6 million on Wii. The first "Stories" game managed 3.5 million on PSP, and Wii is selling much faster than PSP.
No one is betting the farm on Wii just yet, but then no one is betting the farm on 360 or PS3 either, and its easy to tell who has the momentum.
"[Our former customers] are unable to find software which they WANT to play."
"The way to solve this problem lies in how to communicate what kind of games [they CAN play]."
Satoru Iwata, Nintendo President. Only slightly paraphrased.
