@mlohbihler said:
The application landscape is constantly changing. We may, in fact, forego such development and just build integration with a product such as Lightstreamer instead.
Maybe you should look into the upcoming HTML 5 WebSockets and software that already offers implementations that can emulate it if not yet supported.
Some pointers are:
http://www.kaazing.org/confluence/display/KAAZING/Home
and
http://www.orbited.org/