No specific Real-time CORBA has been implemented for RT-LINUX. There's TAO from Washington Unversity. This is a real-time implementation of CORBA. As far as RT-LINUX is concerned, you might have to write your own "Pluggable Modules" - part of the middleware. There's another RT-CORBA, you might be find out more from the OMG website. Just for Linux, you can try VisioBroker from Inprise.