Nope. Many have asked, but AFAIK, the policy is unchanged.
One work around, if you are staying onsite, is to have it linked to your room reservation, which will also have a linked credit card, but on a nightly basis (or every few days, depending on how much activity you are charging on your MB), you can stop down at the front desk and ask to pay off the balance using your GC before they charge your CC.
If not staying onsite....I dunno.