When I left Air Tahoma in 2004, Eric had just taken her from his house in Michigan to Seattle and it was on display at the Museum of Flight with the right to be pulled out and flown whenever Eric or Bud wanted to. I know it's flown a few times since then as it went to Colorado for an EAA fly in in 2005 (a picture of it there is on the Heron Wikipedia entry).
The picture I linked to in the post was taken while it was in that hangar for the Annual to be completed. It wasn't a "resident".
It may also be over at Spanaway if it's not at the MOF anymore. I've not seen any indication of it going back to Michigan and it's definitely not back in Columbus.