Indeed, that post is also not very interesting.
Music players and music management software is going to be available in great numbers and as someone still using and loving the Radio TX feature of the N808 when using random rental cars I am looking at a compromise less music functionality / flexibility regardless of how nice the standard music software is.

In trade I want to see secure XMPP integrated + videocall.
SIP.
After all this is a telephone, a communication centered device that is supposed to go beyond 2009 / functionality of the N900.
It is made by brains from the Nokia team that has proven to understand what makes and excellent Mobile implementation of the Linux OS with all the basic features integrated.

And it is supposed to run on steroids (faster Chinese hardware).

Tell me something about security options , that this device will not send all my contacts to a shady server before I can even discover the basic functionality of applications rights management is lacking.

Show some web browser that allows me to access desktop sites w/o adds and scripts that eat my battery.

So far we see only basics. Rows of icons with a working touch screen.
Time to upgrade that image a little bit, Jolla.

Let some professional user make a cool video for once.

Show some multitasking / copy pasting from websites to email to chat, videoconferencing including file transfers in high stress environment.
Something people would want to learn if only the device would offer the possibility and it's creators wouldn't be too shy to tell the world about it.