So far the 222 is NOT available to retailers, its only available to DNS.
However this will chane which they have rolled out a few boxes and make sure all is ok.
BTW I heard a "Rumor" at Team Summit that sometime in the future you will be able to turn the 222 into a DVR by plugging in an external USB hard drive.
So if a customer dont want a DVR now, Dish does not need to go through the exxpense of giving them one. If that customer in the future wants a DVR they will be able to go to Best Buy and get an External USB hard drive which will give them DVR service. This save Dish from having to go out and upgrade the customer.