This is taken from
www.mugglenet.com, the interview with JKR. Sort of a spoiler, so just in case...
"I will say, that yes, I personally feel - well it's going to be clear once people have read book six. I mean, that’s it. It’s done, isn’t it? We know. Yes, we do now know that it's Ron and Hermione. I do feel that I have dropped heavy hints..."
HAHAHA! Take that, Pumpkin-Pie-Harry/Hermione-shippers!
I mean...I love you!