Lightstreamer was the first framework to pass the OpenAjax Alliance InteropFest 1.0 test case.

The InteropFest 1.0 is an interoperability event spanning the months of July to September 2007 where multiple Ajax toolkits use the OpenAjax Hub 1.0 to achieve multi-toolkit integration.

The test details are here:
http://www.openajax.org/member/wiki/...nteropFest_1.0

The Lightstreamer test can be seen here:
http://app.lightstreamer.com/InteropFest1.0/