Is Sun Solaris on its deathbed? (New York Times)

Other than that, yes - premature gloating is indeed decidedly unhelpful.

But then, DTrace is only a technology detail, as is ZFS (see btrfs). The question is not about short-term or even mid-term features, but about scalability and sustainability of the (development) model.

And I would agree with Zemlin then; on that side, Linux has a clear lead. Sun has deep pockets, but at the end of the day, it is still just one company. They leverage projects from the FOSS community elsewhere already,because of the advantages this has for them (lower cost of development etc), essentially running a mixed-source shop.

And so I would predict that it is only a matter of time until they apply the same to other parts of their OS - say, the kernel - as well.