Corey Roth presented on deploying code in SharePoint. There are two main options for deploying binaries: GAC deployment and bin folder deployment. GAC deployment is easier for developers but requires resetting the application pool on each deployment, while bin folder deployment is more complex but does not require resetting the application pool. Solution packages (.wsp files) provide an automated way to deploy files, features, and configure settings like SafeControls. They contain a manifest and cab file that tell SharePoint what files to copy and features to activate. Features and solution packages allow developers to make changes to SharePoint like creating lists, pages, and web parts in an automated, reusable way.