Thanks Tim and Mark.
Sorry for delayed response.
You may find interesting an expanded version of my Heaney blog at:
http://jacketmagazine.com/37/heaney-side.shtml
Jacket needs responses to this article. If you want to make one send it to:
http://jacketmagazine.com/00/letters2the-editor.shtml
I think you are both right. Heaney does see a time when posterity will look at
him less favourably than he's grown used to.