On February 18, 2013 the revised version of the IFML specification has been submitted to OMG by a consortium of lead by WebRatio and comprising also Fujitsu, Model Driven Solutions, Softeam, and Thales.
You can find the full specification document, some introductory concepts, and the link to a presentation at:
http://www.modeldrivenstar.org/2013/02/ifml-revised-submission.html