I don't think any downloadable title has ever boosted hardware sales. This will be no different. From my understanding, this is essentially a new NES game. I wouldn't be surprised if it was an actual NES game that was never completed or released and Capcom just now yanked it out of their vault and decided "hey, why not?" 

Why?

Why don't you want those not owning a Wii to able to play this game?

I don't get that fanboy logic.

Exclusives are better than cross-platform games, typically. This will likely be the same all-around since it's going to be of something like NES-calibre, so each system will have no trouble at all handling it--and it is a multi-platform title. 

Preferring exclusives over cross-platform titles isn't fanboyism.  You're just name-calling.  Exclusive titles sell systems and, often, are optimized for one console, so the odds of higher quality go way up.  Look how dismally Alone in the Dark is faring in reviews.  They made it for so many systems at once and none got really solid attention because it was spread around.  The same is true of movie spin-off shlock like Incredible Hulk and Iron Man.  None were seriously optimized in part because it's just "a movie tie-in" and in part because it's cross-platform.  Too little focus spread too far.

For me, an exclusive is less about "I don't want [insert console] owner to own this game," as it is, "this will benefit [insert console] and that's good."  Differing game libraries make systems more valuable.  The problem with the PS3 and Xbox360 is that their libraries are way too similar as they share a vast multitude of multi-platform titles.  Neither of these consoles will be fondly remembered systems in the future the way past consoles with tons of killer exclusives are.  Look at the SNES and Genesis/Master System.  They aren't fondly remembered for their cross-platform titles like Mortal Kombat or all the sports games.  They're fondly remembered for the exclusives they had--Chrono Trigger, Final Fantasy III/VI, Mario RPG, Mario World, StarFox, Mana, Donkey Kong Country, Contra III, Super Castlevania IV, etc.  Sonic, Vectorman, Shining Force, Phantasy Star, Gunstar Heroes, etc.

So you miss some games because you don't have a certain system.  So what?  All successful consoles eventually offer plenty to enjoy and you can always enjoy other exclusives later on when they're much cheaper.  Frankly, I would have preferred if Mega Man 9 had been a Wii exclusive, simply because the Wii could really use more highly-anticipated exclusive games.  Even if they are modern downloaded NES titles.

i agree, this game isnt a hardware pushing game so i dont know why they would want to limit the number of people that could play it

Why do you pick Alone in the Dark, the Hulk and Iron Man as examples? Why not Cod 4, Gta 4 and Devil May Cry 4 etc? There are lots of examples of good multiplatform games as well.

Anyway...

I think why most of the best games are exclusives doesn't really have to do with them being exclusive, but more to do with that companies want exclusives on their consoles, and most importantly GOOD exclusives. Therefore they pay developers to get the game for their console only and therefore most of the best games are exclusives.

And as someone mentioned, this game would differ very little on the different platforms and I don't think anyone save for fanboys would care about the differencies.

Since those are essentially exclusive games, even though they appear on two platforms. That's not the case for the games Resident hazard mentioned. Those are made for very different platforms.

OH MY! I can't wait. I am a true blue Megaman fan.........

While I get a chuckle out of those who want this on the other systems just to see it in HD, I'm pretty indifferent about its exclusivity: so long as I get to play it with the controller it MUST be played with (i.e. the Wiimote), I'm a happy camper.

I dunno... I think it sorta makes sense. I mean they are making a "new NES game" in their own words... wouldn't you put it on the only console that has NES games?

 That's what I was wondering.

"Hurray, other people can't play this game! Yay!"