I disagree. The current situation for mobile developers from Maemo/MeeGo/Nemo Mobile to Sailfish pathway is IMHO : ... 2) softwares in Python/PySide/Qt 4.7-4.8 (Qt Quick 1) : only about 10-20% of MeeGo Harmattan and Nemo Mobile softwares, just some small % of Maemo 5 softwares. But Python is important, allowing party-time developers to code on device (N900, N9, etc), anytime, anywhere, and contribute to the software diversity. The same migration from Harmattan (etc) Qt Quick components to Sailfish Silica is needed, with small-medium source code revision & rewrite. There are more options for Qt5/Wayland migration, none ready at the moment : ... 2.c) use a future PyQt 5 version, because the current one excludes Qt Quick 2. There is also the issue of GPL license and release PyQt 5 for Mer/Nemo/Sailfish;