I like to take your side Bigal.... But have to disagree with you on this one:
"The $265M USD bond is now also costing $286M AUD when it has to get repaid in 2017."
May be this is only One of the clever thing PB has done for this convertible bond deal by fixing US$1.0463 per AU$1. So Linc actually will pay less for the lower AUD...