The Distimo webinar from October 2012 discusses the significance of app translations, highlighting that English remains the dominant language for app downloads and revenue. It emphasizes the increasing importance of native languages for app success, particularly in various countries, and presents findings showing that adding native language options can boost downloads by 128% and revenue by 26%. The document also provides insights into the percentage of free downloads and revenue by language for iPhone apps, underscoring the importance of multilingual support for developers.