We actually designed Breeze to be independent of .NET, but none of our samples show this yet. In the next week or two we will show how to connect Breeze to a generic HTTP service that returns JSON. We’d love to have your feedback on this when it comes out, as we know it will be a big part of the market.
Edit: Breeze 1.3.0 is now available and contains the Edmunds sample, which is a pure JavaScript client that connects to an HTTP service with no dependencies on ASP.NET, Web API, or the Entity Framework. Please take a look and provide us with feedback!
Edit 2: We will also be releasing a sample soon that shows Breeze working with MongoDB, Express, and Node.js with no Microsoft technologies involved. A Ruby sample is also in the works. Stay tuned!
Edit 3: MongoDB and node.js support is now available which shows Breeze working with the MEAN stack (MongoDB, Express, AngularJS, Node.js).
Edit 4: A Ruby sample is now up. This is John Papa’s famous Code Camper JumpStart with a Ruby back-end.
Edit 5: NHibernate support as well as an accompanying sample are now available.
Edit 6: Node/MySQL/Postgres support as well as an accompanying sample are now available.
Edit 7: Java/Hibernate support as well as an accompanying sample are now available.