and Microsoft already provides "go live" license support.
It is a new platform similar to previous .NET 4.6, but optimized for "cloud".
Time to take it seriously... Likely there will be some news at Build 2016
A (Hitchhiker's) Guide To The .NET Core Projects on GitHub
Phil Haack Replies to Concerns on .NET OSS @ InfoQ
book: Sams Teach Yourself ASP.NET 5.0 in 24 Hours: O'Reilly - Safari Books Online (in progress)
By: Jeffrey T. Fritz
ASP.NET vNext | The ASP.NET Site