After Nokia took over the Trolltech, there are some doubt/hesitation among FOSS developer in contributing to Qt and this is started increasing after Nokia + Microsoft deal. On today, Nokia announced that, the Qt will continue to be an Open Source Project and there won’t any difference in accessing the latest development of Qt in-between the Nokia developer and external developer. It is very good move.
The sad part is, Nokia and Intel moving away from maemo, in favor of Tizen. So we need to wait and watch to know, in future, how Qt will used in Mobile platforms.