Hi Jeff:
Yeah, I've noticed a lot of small subtle embellishments in iFly that are really cool. They're so subtle that it's sometimes hard to appreciate the feature. (Kinda like using Apple products. One sign of genius is making the difficult look easy.) Too bad not all the cool features are documented yet. Could be a good marketing differentiator between iFly and Brand FF.
Swift product updates are cool and leading edge and I like 'em. OTOH, swift updates probably make it hard to keep up with documentation. It could almost be a full time job going thru their code and writing on their website about all nifty things iFly does. IIRC, it was this time last year we were at version 6. (As my yearly renewal comes up.)