Received the first four but I ordered directly from the mint. It's unusual for the mint to ship before CP though.
For those still interest in the series, the shopping channel has a unique offer. You get all of the coins in clamshells and you get the collector box too. So you get twelve 'free' clamshell boxes.
The only problem is that they charge 7 bucks in shipping on each coin
The 1oz is nice too. Singles plus those going to the 6 coin 1/2oz will cut into the 40k mintage so there will be fewer 12 coin sets - I'm going to guess the final number of just the 12 coins sets will be 20k or so. Still high by todays standards.