It's a kimono sleeve pullover, knit in only two identical pieces, back and front. I'ts a very simple T-shape as you can see. I got it from Ravelry, a pattern (written in French!) that I adjusted according to another knitters directions. I narrowed and lengthened the bodice, shortened the sleeves somewhat, and left out the collar.
I really love everything about it! The wide sleeves, the fitted bodice, the bateaux neckline, the cables, not to mention the soft, thick wool. It's always a bit scary at the end, because you have to finish it completely to see what it'll look like. It took me ages and the wool was quite expensive (Rowan Kid Classic), but I think this one will last quite some time.