The IRS's ruling on virtual currencies specifies that they adhere to the definition of a convertible virtual currency as specified in FINCEN's document FIN-2013-G001.
According to that document, part of the definition of a virtual currency is this stipulation:
"In particular, virtual currency does not have legal tender status in any jurisdiction."
It's clear from context that "any jurisdiction" includes countries other than the US. So, any jurisdiction out there want to step up and bestow legal tender status on Bitcoin so it can be exempted from the new rulings?