Echo2 is a performance engine that is rebuilt on an Asynchron (Asynchronous JavaScript and XML) asynchronous JavaScript and XML mechanism on the original Echo Web Framework basis. Echo2 mainly compete for implementing a component, event-driven web application development tool, which is similar to some of the ability of customers.
Echo2 uses AJAX technology to provide users with a more similar users of customers. All client / server interaction completely using XMLHttpRequest Wire, a complete echo application runs in a separate web page, does not require Reload and page updates. User Enter Send to the server to submit an XML document in XMLHttpRequests. . . .
More: http://www.theserverside.com/news/thread.tss? Thread_ID = 32834
Here is his site: Echo Web Framework