Well, as a follow-up, my Phottix Atlas's arrived last wednesday and I gave them a try on Saturday.
The results speak for themselves...shots from my remote in The People, The Mirror, The Telegraph yesterday and today.
They are solidly built pieces of kit, and seem sturdy enough for the job. They are slightly over-enthusiastic though, for each image taken on the mkIII (triggering the remote) I was getting between 1 and 3 on the remote itself (199 frames shot on the mkIII compared to 312 frames on the remote). Definite hair-trigger when used for remote cameras!
However, I gave them a crack yesterday triggering flashes, and they work a treat. Immense range...tried them from around 100m (with my girlfriend on the phone back in the house telling me if they'd triggered!) So, 100m roughly in a built up area without Line of Sight.
Top quality...get 'em while you still can!