Ars Technica has a writeup from the RSA conference on the latest Trusted Network Connect initiative from the Trusted Computing Group. Quoting from the TNG Website:

Trusted Network Connect (TNC) is an open, non-proprietary specification that enables the application and enforcement of security requirements for endpoints connecting to the corporate network. The TNC architecture helps IT organizations enforce corporate configuration requirements and to prevent and detect malware outbreaks, as well as the resulting security breaches and downtime in multi-vendor networks.

Keeping up with the TNG folks is a good idea if you want to stay in touch with the latest advances in trusted computing. The list of vendors backing their efforts are pretty impressive adding some credibility to their efforts.