I actually knit this in Jan/Feb 2010, right after I took my positive pregnancy test for Rose. (Baby blog name....other daughter is Flower, so this one is Rose.)
The yarn is Malabrigo Worsted in Amarosa. I knit it on US size 5 (3.75mm) needles. I love, love, love this yarn.
The buttons were purchased at a (not-too) LYS. They are little wooden buttons. I love them too.
I am very glad to have knit this pattern. It was a little boring at times because of all the "knit, knit, knit". Garter stitch is generally not my favorite. But the yarn made it worth it.
My overall impression: Cute, but I'd rather have a Tomten Jacket for all the time put in knitting garter stitch and all the yarn. This particular jacket fits about 6-12 months. It is too big for my baby right now at 7 weeks, but still looks cute on her if I put it on. I don't love the proportions of this jacket. The Tomten, however, fits about 6 months to 2 years (I have a friend that has knit 2 of them, we've been doing a LOT of talking about sizing, fit, etc, in regards to these two designs). For all the time and effort the Tomten seems a more versitile jacket/coat and is waaaaaay cuter.