The only mention is this Hit & Run entry
. Would not be surprised to see a mention in print at some point.
(Reason does run pieces not by their staffers... perhaps a bounty (disclosed within the piece, of course) for someone who writes an article on Bitcoin that gets published there?)
On Wal-Mart, a vigorous market in exchanging BTC for gift cards is probably the best bet (and the most reliable cash-in/cash-out method for bitcoin: the feds are not going to tell Wal-Mart to stop offering gift cards or adhering to KYC as it will inconvenience far too many voters. It's easy to go after folks who wire money overseas or who send a ton domestically via WU or whatever, but cracking down on retailer gift cards?)