I have two design suggestions for the mobile user profile pages:
- Provide a more prominent and more obvious link to the user's contribution history. This is much more useful than the user's last edit. Maybe in the section "Recent Activity" rather than hidden in the sentence at the bottom.
- Make link to the wiki user page more prominent. Right now, that link is typeset in bold face, without a clear indication that it is a link that one is supposed to click on. The two activities "Talk to this user" and "Visit user page" are related and should get the same design and be clearly separated from the sentence about the number of the user's contributions.