It's the first I'm aware of. Doesn't mean some haven't been doing it unannounced, though.
It's a great industry to accept Bitcoin for, you guys must frequently deal with different currencies, so something that's universal pretty much everywhere makes real sense. This will let you maybe take on work to riskier places too, as I'm willing to bet that even places not considered high risk can have problems with card chargebacks frauds. Not forgetting the places where people can't get credit cards, or just to people who can afford to pay, but don't have or don't want credit card accounts.
Have you got a policy for how you account for big exchange rate swings? The expectation is that the swings will lessen with time, but we're definitely still in ski-jump slope territory now in 2013.