Well, I think that both Super Mario Strikers and Mario Strikers Charged, Peach shows that she is both a girly-girl and a tomboy (why post this? I was arguing with Peach-paradise members about this) It's not a surprize Nintendo changed Peach..They did it because obviously stated previously, she can't play in a dress. What is she to wear? Nintendo wants to take her into the modern world, showing her belly button is no new fad in the real world.
Wait til Mario and SOnic @ the Olympic games come around...they HAVE to put Peach in a swimsuit..she can't swim in a dress...I've tried Peachy!