Some time ago a blogged about some annoyances in the, at the time, current pom.xml for hibernate. At that time the maven metadata for hibernate was maintained by the maven community who could not keep up with the amount of work generated by updating dependencies to hundreds of software libraries.
Well, things have changed quite a bit since then. 2 of the most important java open source projects of all times have started maintaining and publishing their own maven artifacts!! Spring Framework announced it here on January/2008 and more recently Hibernate did it here.
It is clear that maven is gaining ground in the build market when projects of this caliber start supporting it. In the case of Hibernate they totally migrated their build from ant to maven.
I am glad that maven has gotten to this point.