Nokia is still working on Harmattan! You can check the bugreports here
http://bugreports.qt.nokia.com/browse/QTBUG-15851

Like tissot said Nokia wants to make Harmattan compatible to Meego, so it would be a MeeGo product and not just as Quim said an instance of Meego. Doing this Harmattan-Meego Device would receive the same Meego updates like entirely Meego Devices. The only Problem is timing. N9 has the Hardware of 2010 and with every delay its getting older. In the meantime Samsung is preparing their high end phone to showcase at MWC. In terms of marketing they can use features like Dual core CPU and 1080p Videorecording and playback.