The 24 hour hackathon, held at General Assembly, brought together developers to create innovative projects using APIs from various image-centric services such as Aviary, Instagram, and Flickr, with a focus on Twilio integration. The event saw a number of clever projects, including the winning hack PhotoJabber, which uses Face.com's recognition API to determine if someone other than yourself is using your computer, and other notable hacks like Honey Badger and Slideboard. The event provided $10,000 in prize money and a spot in Times Square for the winning project, as well as Twilio credit for all participants. Overall, the hackathon showcased the creativity and innovation of developers working with Twilio and image-centric APIs.