Contacts/Phone and the way they communicate with each other changed dramatically. So implementing this would
be quite pain in the ass so to speak.
One thing that could be done easily would be to make mod that would make the list permanently invisible.
2 way call recording is already in the kernel since GB roms utilize it (SKatie, Swedish Snow).
So it should work here too when using CallRecorder app (haven't tried myself since I don't need it).
Touchscreen... I am not sure if we can do anything about it. For me it works OK. You have to press carefully because
when you slide your finger a bit then the system inteprets it as fling, not touch.