You take a basic MeeGo distribution and put Hildon UI (or Qt UI) some Nokia specific apps and services on top and you have system both based on MeeGo and MeeGo compatible - because it has everything MeeGo compatible system requires inside. And it is obviously instance of MeeGo, because there is whole MeeGo core stack inside. Hope, now you get the idea of what MeeGo is. In other words it's a way of achieving multi OS application compatibility. If you write an application for the lowest common denominator called MeeGo, your app will run on Nokia Maemo-descendant platforms and on Intel Moblin-descendant platforms and on the in-car computer platform running MeeGo distribution under the hood, and..