I couldn't care less for support of Viber/Skype/Facebook/Dropbox/Google. I'm no opponent of closed source software, but I am of closed protocols and systems.

I'd like to see
1. Offline navigation, using OSM vector maps instead of downloading tiles.
2. Better office viewer. The built-in Caligra seems kinda old, crashing often on OOXML. However, I'm pleased with the ODF-support, but that also might receive an update. I have LibreOffice installed, but isn't exactly useful as a viewer on a touchscreen...