IzPack is an open source installer builder that allows creating installers for multiple platforms from a single source. It started as a student project and has grown to be used by over 25,000 users per month. IzPack allows defining installation resources like files to package, custom panels, variables, and actions in an XML file. The installer can then be compiled to a single jar file to distribute. The presentation outlines IzPack's capabilities and history, how it works, and examples of using it to create installers for different platforms and applications. It invites the audience to try IzPack and provides contact information for the presenter.