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 
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.
Liberty is a Senior AI Engineer at the University of Pittsburgh Medical Center, and was a Team Lead and Senior Software Engineer for various corporations, 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 21 year Microsoft MVP.
These pictures caturped every moment of my daughters wedding i could have ever imagined. This day was so beautiful and meredith and all the vendors did such a great job i couldnt have asked for better photographers to document this event. Thank you stephanie and ben for such an amazing job and for being so nice and helpful to our family. Your potrayed just how sara and wes are perfectly and for that i thank you!!Kelly WhiteMother of the bride