Thanks! Glad you liked it! I plan to do a proper brown-bag Air-Mozilla presentation of it soon, so we'll have a video recording available online (and not just the slides).

FYI, I showed three different designs in that presentation, to compare/contrast 1: original J-PAKE, 2: intermediate not-used SRP thing, 3: final non-SRP "onepw" design. More than one audience member was left confused about which one we're using for Sync. Tell your friends: we're deploying the last one, nicknamed "onepw", from page 20 of that slide deck:

http://people.mozilla.org/~bwarner/warner-rwc2014/#/20

cheers, -Brian (member of Mozilla FxA/Sync team)