You know what you're downloading on Wii today without having to look at the full list. In fact, we'll save you some time: Cave Story is
the full list. In what we still regard as a pleasant surprise, Nicalis's remake is actually, for real, being released today! The only thing better than actually getting to play Cave Story
today would be getting to download it for free -- which you just might be able to do, if you follow @nicalis on Twitter and take part in the dev's daily giveaway.
DSiWare is also home to pleasant surprises today, in the form of three DSiWare versions of Game & Watch