React uses a declarative paradigm that makes it easier to reason about a JavaScript application. React computes the minimal set of changes necessary to keep your DOM up-to-date. Kendo UI seems not to have such an update feature. But since React works with most libraries and frameworks, please create an example app with React or make a blog post about how to use React together with Kendo UI Web.
As for R3 2017 we offer official support for React through a set of wrappers: http://docs.telerik.com/kendo-ui-wrappers-react/getting-started. While they are wrappers, we have taken the time to ensure that they work better in a React environment and have done some performance improvements through our implementation. A set of native React components will start releasing with R1 2018 and beyond.
I'm hoping the React components aren't too far off, since others appear to be a step ahead. I think paying customers of Kendo UI deserve better than wrappers for jQuery widgets. http://wijmo.com/blog/how-to-use-wijmo-controls-in-reactjs-apps/
Here you go. http://developer.telerik.com/featured/using-kendo-ui-jquery-react-app/
Integration with React is very interesting for me also. The best article about this which I already found is http://ifandelse.com/using-reactjs-and-kendoui-together/. May be it will help.
My company has an open-source forms library built using Kendo UI widgets. https://github.com/wingspan/wingspan-forms We've built React component wrappers for several of the kendo widgets. Feel free to use and contribute.
Kendo UI using reactjs internally would be just plain awesome.