Hey Conrad
We're using Plivo on a proof of concept for a client, and we're hopeful that we'll be using the Plivo open source framework should the client decide to go ahead and develop the idea.
It's not in our client's business model to use a cloud solution like Twilio or Plivo Cloud at the moment, which is why the Plivo open source framework seems like a great solution for us provided it's going to continue to be a sustainable/maintained open source solution.
It's kind of surprising to me that there seems to be so little activity on this forum because Twilio seems to be so popular and Plivo seems to give many of the same features for FreeSWITCH which is according to some the better VoIP platform (compared to Asterisk). And you can either use a cloud solution or host yourself which is just awesome.
I've been really impressed with how easy it is to get up and running with Plivo/FreeSWITCH so I really hope Plivo is successful.
To that end, I'm learning Python at the moment so I can hopefully be in position to understand how Plivo works and start contributing to the open source project myself.
I think Plivo are going to be at ClueCon next week (the FreeSWITCH open source VoIP conference), so I'm hoping that will kickstart interest in Plivo.
Cheers
Martin