The very first thing I see on meego.com is "MeeGo 1.2 Release ... 19 May, 2011". EDIT: I realized you were probably talking not about the MeeGo platform but a

The very first thing I see on meego.com is "MeeGo 1.2 Release ... 19 May, 2011". EDIT: I realized you were probably talking not about the MeeGo platform but about the reference handset user interface. I don't know who has been developing that. Nokia announced their intention to differentiate with their own proprietary UX a while back as I recall. The only project I've heard of that uses the reference handset UX is the Community Edition of MeeGo for the Nokia N900.