Thank you for posting these. One of things I want to emphasize is that these units plug into your router or a switch. They are essentially full fledged computers, their software just defines them as a miner. Each miner will have 2 things running, a BTC wallet, accessible from a web interface, and a Miner. The miner will be defaulted to mine on MiddleCoin, which mines the most profitable coins, and pays out in BTC. Middlecoin will send the bitcoins to the wallet on that system, and the web interface will allow the customer to transfer those bitcoins to their own wallet as they wish. There are more to these units than simple hardware.
Those are the default settings, but can easily be modified.