Yes Ken has stated that all refunds go in Fiat. All Purchases should have been paid in Fiat and BTC has no part in the buying of hardware. We are not bound to refund in BTC value. I stated this earlier as the biggest advantage AcTM Investors have going for them and the biggest downfall AcTM Customers could face if they end up requesting refunds.
We could refund everyone's money and still probably be up enough to buy some miners since we started taking orders way back when BTC was worth $100-$200 and Ken has hinted at keeping a lot of money in BTC to ride the tide upwards.
This is slightly incorrect. All purchases are in fiat with the option to use Bitcoin as the medium. However using Bitcoin does not entitle one to a Bitcoin valued refund. This is a good thing because it's the only way a Bitcoin economy can work. If all merchants had to offer a refund in Bitcoin value no one would ever accept the damn things.