The clock on the lockscreen should also show day and date, battery and signal-strengt (without plling). Because these are basic informations that you need at one glance.
This was raised with Jolla on 28th November. It is also a feature request on together.jolla
I often glance at the phone to check battery status (although am getting less paranoid now as battery performance is far better than my N9). Having to peek after waking the screen is just annoying. I would rather see battery level than data connection type of the wake screen.
The choice of data on the wake-up screen seems somewhat arbitrary. I could have understood a clean screen with clock only, and a pull for other data, but why show bluetooth status and not battery?