I really like where Plivo is heading and Venky (bevenky@HN) is very helpful.

I love that Plivo is concentrating on features and functionality that make building a scalable product easy. It's one thing dealing with the pain of scaling telephone infrastructure, but Plivo is allowing us to more easily scale our backend control infrastructure too (primarily though callbacks).

Not to mention that we are based in Australia, a country that is generally ignored by this type of service.