[RussleTop]

I guess if there was the ability to record multiple notes against an activity and the ability to categorise each note, it would work towards what I'm after.

Perhaps the ability to define custom attributes for notes coupled with the ability to report (select, filter, etc.) based upon the values of the custom attributes?

The problem would be that different types of note (e.g. an ‘information’ note vs. a ‘risk’ note) may require different attributes.

[Lizard]

You can add custom data columns to tasks (or resources for that matter). You might create one for "Risk", one for "Primary Contact", etc. These can basically be like categorized notes. You can add them to the task outline view, and include them in HTML exports.