Almog Koren gave a presentation on Meteor, an open source platform for building web and mobile apps in JavaScript. Meteor allows for real-time updates, latency compensation, and hot code pushes. It uses a single programming language (JavaScript) and provides packages that handle tasks like live queries and synchronization. Businesses like Workpop have been built using Meteor due to its support for rapid prototyping. Meteor is growing in popularity, with over 150 meetup groups and 2000 community packages. Koren recommended resources like Meteor.com and Discover Meteor for learning how to develop apps with Meteor.