Missed this earlier... I actually have a set of them (bought as a souvenir while in a climbing shop in Prague ages ago) and they work well enough. The springiness of the wire helps hold them in place fairly well (especially keyed into solution pockets where nuts and regular tricams won't stick), but makes placing the smallest ones a total PITA until you get the wire kinked just right. Plus the wire holding them up like that when racked causes the larger ones to catch on everything, so they didn't stay on the rack long. That said, the smallest is a useful sub-Pink-Tricam size and stayed on my rack for quite a while. Apparently a year or so after I bought them they came out with another version where the wire was free to rotate around a pin, which might solve the racking and placement issues. Never seen that version in person though, nor a mention or review on any of the climbing sites. And keep in mind I'm a Tricam fanatic, so YMMV.
Aric I am a big tricam fan myself. I brought a set up to the orange on the Maroon Bells traverse a few weeks ago, they went in everywhere. They get bad mouthed a lot but I think their simplistic design is amazing, great utility. Maybe I will check out a set of those Viamont things. Thanks for dredging up this post.
I have a set of the "basic" wired viamont tri-cams (no swivel or axel). They were very cheap but appear very well made. I have hung from them a few times and not died yet. They are nice for placing one handed and sorta cam themselves into place with the wire acting as a spring! Cool bonus. I haven't fallen on them yet, but am sure that they would be fine.