Not for a long time. The DS is at a 100 million userbase. The DSi might be a million or so right now and maybe it will be 10 million by the end of the year. What version do you think most would focus on? Since any DS game will play on the DS but not neccessarily the other way around if they use too many features of the DSi, I don't see any exclusive DSi games for a while. I still also expect many people to continue buying the DS instead of the DSi.
I could see some games coming out that are playable and you get 80-90% of the content but the rest uses features of the DSi. That's what I would expect.
I'll come up with something better eventually...







