Is anyone using OID? After hitting the Oracle site, it seems we could comfortably use Oracle Names for another two years or so.

The Oracle Docs state that it is "implemented as an application" on the Oracle 8i and 9i databases.

Does it mean that there is no incremental cost?

We use Oracle Names Server and it seems very easy to set up and maintain. Oracle states that 9.2 is the terminal release of Names Server. Outside of that, is there any compelling reason to use OID instead of Oracle Names?

Any rough estimate on time needed for implementation?

Thanks in advance.