They have created an OSLC “wrapper” for Omnibus Integrations that exposes the data from connected tools (including HP Quality Center, Microsoft TFS, Atlassian Jira, Hudson, and others) as OSLC service providers. This allows you to integrate OSLC-compliant software with other tools that do not support OSLC. Kovair has more details about the OSLC-driven integrations on their site, from which I have shamelessly grabbed this diagram of the process:
They’re hosting webinars on March 14th and March 15th to demonstrate how to connect artifacts in Microsoft TFS, Atlassian Jira and HP Quality to an OSLC tool such as IBM Rational Team Concert. You can find more details about the presentations and register here.