The webinar by Atmosera and Itrellis on February 28, 2018, focused on the considerations and strategies for re-platforming applications to the cloud, emphasizing the advantages of using Azure. It highlighted various cloud migration options, including lift-and-shift, re-platforming, and re-factoring, along with best practices for optimizing performance, compliance, and cost efficiency. The discussion included lessons learned and a Q&A session to address participant inquiries.