Selling preconfigured Onion Pi's sounds like a vendor opportunity. This makes using an anon middle box easier because you can switch the wifi AP that you connect to in order to Torify your main box. Obviously that's not the safest setup, if you have sensitive files on your computer. Also, an attacker who gains access to your system can connect to the non-Torified router, but it's much safer than TBB on Tor. I would still run Linux in a VM and perform all Tor activities in that. In fact, you can bridge a VirtualBox VM directly to a specific device, like this Onion Pi, so you could do non-Tor stuff on the host, and physically/virtually isolated Tor stuff through the VB VM - Onion Pi. Hmmm, a preconfigured VirtualBox appliance to use with the Onion Pi would be a nice second listing...