Perhaps, but it's the surfactant that is causing the problems. Roundup or any other herbicide isn't of much use if the chemical rolls of the vegetation. The semi-permeable skin of amphibians is likely to be sensitive to any surfactant regardless of a reformulation.
>> Sounds like it's not the active ingredient that's
>> the problem, and a reformulation might fix it.
> Perhaps, but it's the surfactant that is causing
> the problems.
Which further suggests that RoundUp isn't the only
product with this problem.
But a reformulation to fix it wouldn't necessarily
involve replacing one surfactant with another (unless
the other is known harmless). Perhaps they'll use
micro-encapsulated superglue :-)