Gavin King has recently posted to the Hibernate blog wesite with a set of responses to issues raised by Versant comparing their ORM product to the (apparently inferior) features Hibernate.
Gavin replies to each of the points raised by Versant, correcting their understanding and illustrating how Hibernate does indeed provide features indentified by Versant as missing.
I haven’t seen the original email from Versant, but it seems like an attempt to spread some Fear, Uncertainty and Doubt in the ORM world. I wonder how much Versant’s business is hurting as a recent of the success of Hibernate?