We have already tested the beta version of the managed odp.net driver but found out that there are still some issues in this driver that were revealed by our test suite. These errors are already reported to Oracle directly and we are waiting for a new version of the driver to test it again.
We definitely plan to support the managed Oracle driver but unfortunately, we can not give you a timeframe yet when this will be. We will integrate support for this driver to Telerik OpenAccess ORM, as soon as we can rely on it and our test suite shows no more errors.
I hope this information is useful for you.
Feel free to ask if you have any other question.
the Telerik team
Q3'12 SP1 of OpenAccess ORM packs Multi-Table Entities mapping support. Check it out.