I'm very curious about the III as well. I've hunted with my SBEII for about 12 years, and I can't imagine any shotgun serving me better. In my book, it's perfect and lacks absolutely nothing. From the literature I've read (more like briefly scanned), I didn't see anything on the III that makes me want to run out and get one to replace my II. I'm doubting anyone here has any experience with the III yet, being it's so new, and I've not seen the II mentioned very often.
Came here to say exactly this. Why did Benelli NEED to make a III? The II was pretty effin perfect (except for the slop in the plastic front grip to the mag tube).