Oracle will be able to keep Solaris alive for a long time. The hardware supportability and start/stop/start on Intel platforms really hurt them, but it will survive in niche markets and still has advantages (ZFS, dtrace to start, I'm sure you'll find more if you dig).

If you have "regular" hardware (1-4 sockets), you pay 1k/server/year. No "I know what I am doing" with this OS, but meh. 5+ sockets is 2k/server/year.

This is really, really too much if they want to re-kindle Solaris as mainstream thing. FreeBSD seems like a safer bet then OpenSolaris.