@Syntax - There will be more than 15 playable charecters, more like 35-45 from what i'm hearing.
@Jill - It's an incredable 3D fighting masterpeice. True glory lies in this franchise with it's great graphics, wide veriety of charecters, superb gaming modes, huge list of things to unlock (chars., stages, trophies, etc.)
Get ssbm for you're Wii if you have time. You wont be dissapointed.