The Twilio Client is being launched and a new developer contest is announced to celebrate its launch, inviting developers to create something interesting using the platform within two weeks. Five winners will receive $100 in Twilio credit, a customized messenger bag, a full pass to the Twilio conference, and an 11-inch MacBook Air. The contest aims to encourage developers from all backgrounds to try Twilio for different use cases, industries, and integrations, with categories announced each week. The contest is open to submissions until August 7th, and participants can get help or share ideas on the Twilio forums or by contacting support.