Decisive buggers aren't they?
http://www.bbc.co.uk/news/business-14801324
We'll just need to make sure that the unlimited amounts of Euros they buy are Greek government bonds. ;)
As they tried interventions last year too and lost massive amounts of money on them, it will be interesting to see if they can actually keep that peg. Especially because I think the worst for the Eurozone is still to come.