The talk button on the Minerva skin is currently only visible to logged-in users whom have greater than 5 edits, or logged-out users who have opted-in to the beta setting. This differs from desktop which shows it unconditionally.
Original task report:
> The mobile interface for wikipedia currently doesn't offer a link to the Talk/non-Talk page. Nor does it offer a clear link to the History page.
>
> Request: add a thin set of tabs at the top of the page, as on the non-mobile interface. Include at least "Article/Project" "Talk".
>
> Either offer a "History" tab (which would take you to the non-mobile interface, as currently), or move up the "last edited X days ago" line to be a subtitle, just below the title. If the latter, add the text "(see page history)" to make it clear that clicking on that text will display the history page.
>
> This will make editing and interacting with the site via mobile much more rewarding. Thanks!
>
> **See Also**:
> * {T52396}
> * {T89606}