I recently sent in my Optimus Stove due to the recall and I got an email today saying that the warranty work was completed and my stove was on its way back to me. Due to the inconvenience they offered me a 30% discount on my next Katadyn or Optimus purchase. I already have 2 stoves and a brand new water filter so I am good for awhile.
So first person to PM gets the code, but please only PM me if you're in the market for one of these products (the code is only valid on their site, won't work on altrec.com or rei.com for example).
If I don't here anything in a day or two I'll put it up on Mountain Project.
Cheerio!