Next year should be a great year for .NET. One of the prominent features is iOS to Windows bridge that will most likely get released by next year. WinObjc lets you write Windows applications using Objective C and it also allows migration of existing iOS applications over to Windows. Apple has also made Swift open source so you never know it might also end up becoming available on Windows.
Evaluation developer virtual machines can be downloaded here: evaluation developer virtual machines (VM) on Windows Dev Center