USAA is currently market testing a 2.5% CB card in some states - http://www.doctorofcredit.com/usaa-limitless-credit-card-rev...
Personal, non-business card, military and family only.
http://www.doctorofcredit.com/usaa-limitless-credit-card-rev...
from that doctorofcredit.com URL:
"This card would be your best option for non-category spend (apart from the Discover it Miles, that offers 3% cash back for the first year). Obviously this is a loss leader for USAA, but they would be trying to make that money back on the checking account that requires the $1,000 direct deposit. Most other financial institutions have used bank account bonuses instead, but Fidelity also loses money on their 2% card but still come out ahead as cardholders have larger Fidelity deposits than non-cardholders. I suspect USAA will need to add some limits to this card to make it sustainable, but the limited membership might make this unnecessary."
The Limitless card is pretty much a market test at this point and not an established product.