It is interesting to note that Apple Inc. also had recent “legal” trouble with Sun. Apple had been on the verge of integrating the open source ZFS (file system) into Mac OS X (10.5 had near production quality ZFS support) but recently closed down the entire project and site due to licensing issues. See [this forum post on the Open Solaris site.](http://mail.opensolaris.org/pipermail/zfs-discuss/2009-October/033125.html)
Based on this dude’s statement, it looks a lot like that was Apple’s decision.