Hi Norris,
Well I forgot my camera so no pictures, but the room was crowded most of the time and I was quite happy with the speakers. The Prismas were a little bit bass-heavy compared with the Rhythm Prisms I showed last year (artifact of the bigger cabinet), but in a more "normal" room I think they work fine.
The "secret weapon" I hyped is a rear-firing tweeter. It's about 10 dB down relative to the front horn, so what it's doing is just filling in a little bit of reverberant energy. I'll probably post about it a bit more in a dedicated thread at some point.
One person in particular, whose name I won't mention here, but who has visited my room at nearly every show I've done, stayed a while and commented that he thought the Prisma was my best-sounding speaker yet.