There is success with breeding Atelopus now, just look at the HUNDREDS of A. zeteki the Baltimore Zoo recently had... and I've personally seen over 60 in the collection of a nearby aquarium where these animals were not only metamorphed, but raised to adulthood, and efforts are being taken to breed F2s.
IF THE ATELOPUS GET IN THE RIGHT HANDS THERE ARE PEOPLE WHO CAN BREED THEM!!!
Yes as far as I know the zoo used hormone injections. But I also know of atleast 3 breedings that was induced WITHOUT HORMONES!! If it can be done with atelopes zeteki, varius, and spumarius, as well as the peruvian greens who's scientific name excapes me (and its also in a different species complex than the before meantioned which are A. varius complex) then it there is no reason why it can't be done with the ecuadorian frogs coming in.... except the country my stats are coming from are from the US, not Europe.
I have been talking with people from the Baltimore Zoo and the other institutions who has had success with breedings of varius and spumarius which I won't name due to the projects not being public and/or completely successful, so I'm looking foreward to applying my gathered research on my Suriname A. spumarius (the hardest part was getting females). The whole bit about them breeding only in waters that they morphed in is not completely true, thats just where they tend to go back to but is not the only place they breed (I've breed spotted salamanders in captivity, and the same thing was said about them). It has more to do with cycles and pressures that get the females to release the eggs in the first place.... they won't do it with out the triggers. Given the triggers (I'm not talking about hormone triggers but environmental) the female WILL lay their eggs in water provided as long as it has the needed requirements.
If the institutions can do it, hobbiests can do, its just a matter of figuring out a technique. Poeple said years ago that pumilio couldnt be bred, the tadpoles couldn't be raised, and now look at them. Now exactly easy but it can be done. I'm working hard to make atleast A. spumarius (suriname yellows) the same.