the first PR said will be placed in 945 stores. so I take that to mean they hadn't been in stores. the second PR ref Kroger was about expansion by 400 stores to 1,350 locations. there was also a PR end of July ref over products being in more than 4500 stores. that would be Kroger and others.
like I said not sure of exact dates but they're there if someone wants to look it up.
News 
Market Data 
Discover 
