A new RFC was just released: Dynamic Hostname Exchange Mechanism for OSPF - RFC 5642
A nice little addition that hopefully will make it into the future code versions of Cisco/etc devices. Much like the ISIS protocol that can pass along the hostname of the neighboring device, this RFC proposes the same concept for OSPF. Will be nice to not have to rely on DNS (often can be outdated, etc [at least where I work, hah]).
Now (hopefully) when you do a "sh ip ospf neigh" command (on code that actually implements this RFC), it will display the router hostname in addition to the peer IP. Could possibly eliminate the "ip ospf name-lookup" command that queries DNS for the peer IPs that match a DNS entry.
Just a little nicety...