A case is created and it has a task on it.

A user selects the task by clicking on the subject line in the normal version of zoho crm

By doing so, the user can add a note to the task.

When viewing that case in the mobile version and selecting the related task, the note associated with that task is not visible.  If a task is created without association to a case, and a note exists, the notes section does not exist under "related links" either.

The work around is to just update the task vs. select a note for the task.  But I wanted to let you know that the mobile version does not display notes with tasks.