I am bummed to be missing Twilio’s annual Signal Conference this year. Not just because Jeff does a fantastic keynote, but because Twilio always announces a truckload of amazing new goodness. Here are just two great things from yesterday: first, a marketplace for add-ons which lets third parties connect with Twilio’s 1 million developers (a milestone also announced yesterday) and second, programmable Twilio-powered SIM cards for IoT applications (in conjunction with T-Mobile). While the annou...