Update 1: Check out the "offers" section on your Amex account to get $25 off at Best Buy that you can apply to your Nexus 7 purchase.
Update 2: Use coupon code 41178 to get $30 off the Nexus 7 (or any tablet) at Staples.
Amazon has Google's latest and greatest tablet ready to ship, at least if you act quickly enough. The 16GB model will set you back a mere $230, while the 32GB size bumps the price up to $270. We let you know earlier you could also (hopefully) grab one at Best Buy, and it appears Walmart has also received their initial stock. [Amazon]