Maven3 and M2eclipse mismatch when handling parent version?

Does anyone know if M2Eclipse backed by maven3 supports parent definition without versions?

The maven3 specs says that it should be allowed, as per this maven 3 beta overview. However, M2Eclipse stills spits out a "'parent.version' is missing" error when the version tag is removed.

NB: I will qualify that I have a working build using other means. I'm posting this question because it would be nice to know if anyone has a versionless parent working with M2Eclipse; it's a much neater solution.

Use m2e and not old m2eclipse.