We all got a bulletin from Mike Brown yesterday, with an announcement about Tube Lines.
As we know, TfL bought Tube Lines in 2010 after the all-too-predictable failure of the PPP, but kept it as a separate entity from LUL. It's a silly situation, which should be immediately rectified by integrating Tube Lines fully back into London Underground Ltd just as Metronet has been.
So was that Mike's announcement? No. It was that the Tube Lines big cheese is leaving, and that it will now report to an LUL Director while remaining a separate company.