I have a few suggestions, which I guess if implemented could improve the consumer experience:
Skins and themes for stock apps like calendar, message, keyboard, settings etc. Say, at least the basic colors that are provided in the stock launcher themes.
Also, is it possible to replace Bravia Engine 2 with Triluminous engine for Xperia Z. It would satisy several consumers who like their phone immensely but are underwhelmed by its display.
