Seems to be the same.
You can abuse the download and run it if you wish.
If you need a support contract you can still purchase one and get the updates.
Most of all. It's still available and I didn't have to switch wholesale to Linux!
Oracle just had a web thing on what's new for Solaris 11 since launch.
On the schedule is support for 64 TB of main memory and yearly updates amongst other things.
Read the rest of it here: