Xamarin is clearly focusing on cross platform, and as part of that, and as evidence of it as well, they have phased out their iOS and Android certification and now only offer the bigger certification for Mobile Development. So I took that (3 hour) test 
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About Jesse Liberty
Jesse Liberty has three decades of experience writing and delivering software projects and is the author of 2 dozen books and a couple dozen online courses.
His latest book, Building APIs with .NET will be released early in 2025.
Liberty is a Senior SW Engineer for CNH and he was a Senior Technical Evangelist for Microsoft, a Distinguished Software Engineer for AT&T, a VP for Information Services for Citibank and a Software Architect for PBS. He is a Microsoft MVP.
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