Expeditor 6.1 has been announced!
I particularly like the section on the Composite Desktop:
Lotus Expeditor is an SOA-based server managed client platform that helps improve responsiveness and increase productivity by extending composite applications to laptops, desktops, kiosks, and mobile devices. It is the IBM open standards-based competitor to the .NET client. It is both used by and integrates with key IBM products such as WebSphere Portal, Lotus Sametime, Workplace Forms, and next version of Lotus Domino® and also sold as a stand-alone offering.