While other retailers have kept quiet about the arrival of their Nexus 7 tablets, Staples has stepped up and been the first to announce when customers can expect their devices for the U.S. and Canada. According to their site, the “playground is open”. Patrons in the U.S. can pay $250 from now until July 10th to take part in a limited quantity pre-order offer for the tablet. As stated on the site, the product will take 1-3 business days to arrive and will ship between July 12th and 17th. For Canadian customers, the price is $259 and gives a little less information: “estimated sku release date is July 23, 2012″.