[mattyfo]

Agreed, my number one gripe with spreadsheets as development trackers is that you can't have a discussion around a task.

As a product manager I might write something down and it makes perfect sense to me but not the developer. Hence there needs to be a place for a discussion.

While a spreadsheet might feel simple, I'm argue that there are other simple solutions (PivotalTracker) that get this thing "right"; even for a team of one.