Twilio has recently announced their speaker lineup for upcoming TwilioCon, set to be held in San Francisco on October 16-18. The lineup includes startup figures Ron Conway and Dave McClure of SV Angel and 500 Startups respectively, and a number of interesting people from across many client companies, from Hulu to frog design.
It seems clear that Twilio is continuing its push for developer engagement and ties to the startup world. If you aren't familiar with Twilio, it is a web based service that allows developers to easily interface with telephone features like voice and SMS. I've written a more in depth description of Twilio here.