ServiceNow Discovery allows you to select where there "trusted" name comes from (see screenshot below). As an aside, I completely understand your point.
It's just that Wikipedia is always right. I think what it's saying is that Network gear does not host services in the traditional sense, while computers do; it becomes an issue of semantics at some point.
ServiceNow uses the "name" field to store the hostname (what's referenced in the properties), and the properties listed pertain to this value. Just curious if the OOB properties do not meet your requirements?
Side note: Reverse DNS is often less than reliable and can have more than one entry for an IP address. You'd be surprised (okay, maybe not!) at how many customers I encounter that have crazy, incomplete, and inaccurate data in DNS.
