I don't think I am breaking any NDAs, when I say that this is false. If there are going to be incompatibilities, then they will not exist just for the sake of it. And we are definitely not talking about a "slightly repackaged Maemo5". Just keep in mind that work on Maemo6 began long before Nokia and Intel agreed to cooperate with MeeGo. Clearly you cannot expect that this cooperation means "Nokia to drop everything and use Intel's version of MeeGo instead". It is a process.