Hm - it's nice to see that most linux users (or at least, most lwn readers, or at least, most lwn readers who take the trouble to comment) are bothered by this sort of negative talk from the Linux Foundation. First, as other comments have pointed out, Solaris has features (zfs, dtrace) that linux users can only drool over. Second, open source is our friend. The more popular opensolaris gets, the more content providers and hardware manufacturers and software writers will need to conform to open standards and not just cater to a single platform. That can only help linux.
I have been seriously considering opensolaris for a new laptop: the only drawback that I see is its lack of bluetooth support, but I could always keep a linux partition just for that purpose. Windows is no use to me, largely because of its lack of interoperability with other systems.