it's not only going to be indie devs, tho. Konami is far from indie, you can also bet Nintendo themselves will also be making their own content.
Another thing that needs to be realized is that the Wii is made to be a social console, pick up and play, and really there's nothing easier to pick up and play than puzzles games. also a survey in the not too distant past revealed that women over 40 are the ones who most play those free puzzlers on Yahoo!, and the same people are also the ones who download/pay for them most often as well. Why wouldn't Nintendo want to tap into this market, much like how the DS has many puzzlers, and my mom keeps buying them up. She's one of those over 40 women who play the Yahoo! and MSN games, although I stricly forbid her to pay and download them, since she has a DS already. (she's only barely not computer illiterate and would need me to download the games for her, which is how i can forbid her).
Puzzlers fall directly in with Nintendo over-stated philosophy of tapping the casual gamer, those they are going to produce and develop a lot of casual games, JUST LIKE THE DS!! The Wii is the DS on T.V (except T.V's don't have dual screens).
Anyway, there is also going to be a fair amount of non-casual games, hopefully we see a lot of typical freeware developers making games for the Wii to make a buck, and provide us with entertainment, there are a lot of good free to start, pay to continue games on the web, and the Wii would be a good market for them. I would name a few but I haven't played since I got the Wii (actually I should say since my brother got the Wii since I still can't find my own to buy) but if they were on the Wii, I would find the time.
Edit: Since these games are likely going to have their own channel, and not work the same way as the VC games, I have to admit I was wrong, and I've changed the title to reflect this.