We had the pleasure to host the Meteor Munich Meetup and learn more about ReactJS in comparison to Blaze when it comes to front-end development and hear about the future of front-end rendering in Meteor.
Phil is presenting his take on it in this video.
Check out this blog post and forum entry for context. There is also a video tutorial “From Blaze to React“. And here is another (the latest) forum entry on the topic.