I agree, as someone that's had some "off mainstream" hardware over the years, I'd kind of like to have a 16+ core ARM server to play with; just because that's the kind of dork that I am.

Really though, I think this is other things, if amazon can become independent from Intel and AMD? that gives them huge leverage in terms of negotiations with them. Really, it sets AWS up quite nicely for the time when they are broken up and split out.