Have A LOT of problems with the current volume PARTICULARLY claims by Bannernon Niley et al that they've got casual tie protoypes operating out in the field. Seems VERY improbable that they've leapfrogged the esteemed work of the Grambinlod team in Truro? I guess that's what happens when you have American big business funding your research though. As I recall the Niley team has several interested parties wheras Truro have to go cap in hand to BHS when they need anything as small as a new collar design fabricated.
Will be very interesting in the next couple of months to see if any groups manage to replicate their data.