Looked a bit more and stephen was right the haswell core i3s tend to support AES so that is a good thing.
Those new atoms do look lovely and very low power also http://www.anandtech.com/show/7453/ecs-reveals-bay-traild-miniitx-line
Only thing is I see no pci express slots, vital to have one. I am unsure if anyone has attempted a mini express network card and its worked with pfsense…. but if the performance of these baytrails are good and mini express network cards worked then they would make awesome pfsense boxes.