@Mortington22 First & foremost, THANK YOU for all this feedback. We really appreciate you taking the time to write all of this down.
Since you had your Mudita Kompakt, did you make sure that you have updated the software to Mudita OS K 1.5.0? I just want to make sure, so that you can have the best possible experience with your device.
I will address your points one by one below.
1. OS- Continued improvements to address screen sensitivity and avoid pocket dialing
Are you using any type of screen security feature? Like a PIN or Fingerprint unlock feature? Those would help a lot when it comes to unintentionally unlocking the phone. Our team has worked on improving the functionality of the fingerprint sensitivity and it should work great now.
2. Open contact cards when selecting names on “Recent calls” instead of automatically dialing
I will pass this on to the team. This is a good idea.
3. Reduced latency (especially with typing)
The keyboard underwent some updates since we launched the phone, that’s why I’m keen to know if you’re on the most recent software.
4. Calendar & Increase options for notifications
I will pass this on to the team.
5. Calendar syncing
Calendar syncing is on our radar. We know that people are looking for this feature.
6. Chess- I will pass your feedback to the team. I’m not a chess enthusiast by any means, so I cannot comment on any of your points 
I’m sorry.
7. SMS: Group texting fix. Please make sure your phone is updated to MuditaOS K 1.5.0. Group texting and features connected to Group Texting were implemented in 1.4.0, so if you’re already updated to 1.5.0, could you please elaborate on what specific issues you’re experiencing.
8. E-reader & Working page links- I will pass this on to the team.
9. Email: I will pass this on, but, to be honest, I can’t promise anything on this side. Have you tried sideloading an email app client? I think there are users who’ve had luck with Outlook.