The only way to determine which has an advantage is to conduct UX research from a completely unbiased standpoint.
Here's a writeup in Techcrunch.
I don't know if it's going to get that big but I realized the other day that even in my non-criminal, law-abiding life there are still a lot of things that I send to people via SMS that I probably should not have. Lots. Of. Things.
They have a tech FAQ which goes into detail about encryption, privacy, etc.
"I've finally learned what `upward compatible' means. It means we get to keep all our old mistakes." -- Dennie van Tassel