There is certainly an amount of admiration towards their openness. However, I find it ridiculous that someone so young is being identified as such. That isn't to say that the person isn't transgender; it just seems (very) premature. I would apply the same reasoning to a child identified as gay, straight, and anything else dealing with sexuality. In fact, the issue (and growing trend) of childrens toys relating to gender demonstrates this pretty well IMO:

In the same way that we say a child's sex is independent of the toys they play with, the activities and artifacts that the child uses should not be used to determine their sex.
I love that she is able to freely engage in these practices, but there is no need to neatly wrap it up in some package.
Of course, when it comes to bathroom use, that's where this breaks down, and it is of course why the 'controvery' and article came to be. It's something I'll be mulling over, along with the question of when such an identify becomes sensible and healthy (puberty being the most tempting answer, even though mental awareness is the far more important yet immeasureable factor).
I agree with you on the age thing... Little kids hate girls and think they are gross so that would mean they are gay... Well until they hit a certain age and things change... So I agree on the puberty as being about the right age....
Let me explain... People say they feel like they are born a girl or boy when they are the other gender.. But most times it isn't that it is that the way the feel doesn't fit with the gender roles of our society...
I have a slight problem with people who are transgender but it isn't a problem with them it is the problem with the idea... Yes you can be transgender and gay and that sounds odd.....