Getting Nexus S Android NFC into Card emulation mode

Has anyone been able to get the nexus s into card emulation mode?

The latest android release does not seem to support this yet.

This article says it's possible http://www.nearfieldcommunicationsworld.com/2011/02/13/35913/uncovered-the-hidden-nfc-potential-of-the-google-nexus-s-and-the-nokia-c7/