@bandora, Harmattan is a natural forward development from Fremantle/Maemo5. There are plenty of differences between Harmatten and MeeGo Core/Handset. Why do you need "proof" of something far more enlightened people are telling you, and what does it actually matter to you. * MeeGo uses ofono for phone functions, Harmattan and Fremantle use telepathy-ring. * MeeGo uses evolution for contact database, Harmattan uses tracker. * MeeGo uses MeeGo Touch Framework for MeeGo 1.2, Harmattan may still be using the ancestor of called DUI. * MeeGo uses "meego ux components" for qml based apps, Harmattan uses "Qt Components". * MeeGo uses sysvinit for startup, Harmattan and Fremantle use upstart. Now, I could continue this list. The differences go into the 10s or 20s. But I can't be bothered to spend time on doing research you can do youself ... If you want to know more, look at maemo and meego system diagrams and you can see. Despite what Nokia are saying Harmatten is Maemo 6, the similarities with MeeGo are basically only QML, DUI/MTF and the fact they're both GNU/Linux. They're hoping that with this being the main development API and similar enough to be compatible with MeeGo they can get a tentative MeeGo label. But like every one that knows has been saying, it's not MeeGo, it's not got a MeeGo Core base and it doesn't have a MeeGo handset layer. Hope I've answered some of your questions.