Here's how we parse the user agent:
Mozilla/5.0 (Linux; U; Android 2.2.1; en-us; NOOK BNRV200 Build/ERD79 1.4.3) Apple WebKit/533.1 (KHTML, like Gecko) Version/4.0 Mobile Safari/533.1

Nook Web Browser on Android (Froyo)
Nook eReader Color
Here's detailed information about what we can parse:
Simplified readout
Clear, human readable descriptions of the software & platform
Software
Information about the web software
-
Software
Nook Web Browser
-
Software Name
-
Software Name Code
-
Software Version
---
-
Software Version (full)
---
-
Layout Engine Name
-
Layout Engine Version
533.1
-
Software Type
-
Hardware Type
Operating System
Information about the Operating System
-
Operating System
Android (Froyo)
-
Operating System Name
-
Operating System Name Code
-
Operating System Flavour
---
-
Operating System Version
Froyo
-
Operating System Version (full)
2.2.1
-
Operating System Frameworks
---
Misc
Miscellaneous Information
-
Operating Platform
-
Operating Platform Code
---
Browse all Nook Web Browser user agents
Browse all Nook eReader Color user agents
Report a problem with this user agent
Download our database of user agents
We hope this user agent parse information was helpful. If you'd like to integrate this kind of detection into your own systems; we have a powerful and easy to use API. You'll be able to connect it to your contact forms, customer signups, bug reports, error logs and more.