No ports open on the device, so no connecting ADB over IP (I have seen this work on the Maylong M-150 (Walgreens) tablet.)
Browser sends HTTP User-Agent:
Mozilla/5.0 (Macintosh; U; Intel Mac OS X 10_5_7;en-us) AppleWebKit/530.17 (KHTML, like Gecko) Version/4.0 Safari/530.17
I have tested the factory reset button combination, it is valid. Hold Volume+ and Nook and Power, while the device is turned off.
WiFi options are rudimentary. There is no support for proxy in network settings, additionally, after receiving an IP address from DHCP, the device appears to connect to a website to verify connectivity. If you have a captive portal network setup (where HTTP outgoing requests are redirected to a login page), then the verification process will just hang. You will be unable to go anywhere using the included browser. After several minutes, the verification process will fail, and then you may be able to connect to the captive portal using the web browser. This is discussed on page 56 of the Nook Color user guide.
Would it be helpful to anyone to include the open source libraries that the device includes (under Legal Notices). I don't know if it is helpful to know what libraries are included (or omitted) compared to a conventional Android device?