Yeah, its been a busy year. The mobi vs adobe war is in full swing with mobi format looking a little unsteady on its legs. Quite a big turn around from a year ago when it was the dominant format that nearly all ebook readers supported except Sony and now the pendulum has swung the other way.
Still, my Sony reader is nearly a year old and there has been no major advances that make me want to switch yet. Ask me again in another year's time.