I couldn't say. But it's implemented at the company headquarters and they are experimenting with it in the stores. They haven't gone back on their commitment to it. It's also been implemented at The Gap:
A Rails consultancy (I used to work for) in Atlanta called Highgroove also implements ROWE, going so far as to incorporate it into the way they deliver to the customer. It was a great way to work and operate as a business.
http://www.gorowe.com/2009/09/14/gap-goes-rowe/
FYI, this is just my opinion and doesn't represent the views of my employer.