Absolutely wonderful work.

If you have the time, let me give you some more ideas for future remakes:
- cbrPager. There are little options for comics readers, this one is GTK, and although it works good, the UI is non-intuitive and difficult to use with fingers.
- QStarDict. Needs a bit of polishing.
- PDF Reader. The default reader is not very complete, perhaps a good port of Okular could fill the gaps.
- Image viewer. Again the default one lacks a lot of features especially swirl zoom gesture. A port of Gwenview could also do the trick.

Well maybe all this is a bit of abuse, but you are really a very good designer.