I just finished this top for my daughter yesterday. I've been itching to use this liberty tana lawn (a remnant bin find!) for ages as I loe the feel and drape of it.
The pattern is Butterick B4118, which I adapted a little. I blogged it here: http://angharadhandmade.blogspot.com/2008/07/sewing-for-my-girl.html
I'll definitely make this one again, with the same modifications. There's plenty of width there, so it should fit for a while.