I have read Ivar Jacobson through UML User Guide.  It is delightful to see him talking.
I particularly admire Ivar Jacobson particularly because he proposed and promoted Use Case Diagram and Use Case Descriptions as the starting point for "Giving Shape and adding content to the System to be developed".  I have closely studied these two aspects of UML and I wish to interact with him over the e-mail.
It is nice to know he is now leading OMG to simplify and make UML Useful. 
Let have his e-mail ID.