An account will enable you to access:
Don't have an account?
ONTAP Discussions
On the fieldportal i find a faq regarding FlashPools. Is this already available?
Yes, June 5, 2012 NetApp launched official news about FAS2220 and Flash Pool:
http://www.netapp.com/us/company/news/news-rel-20120605-715416.html?euaccept=true
The news are out there, but ONTAP 8.1.1 is not available for download yet, even as a release candidate.
It is supported and available in 8.1.1, but not supported on the root aggregate at this time. 8.1.2 should allow you to enable Flash Pools on the root aggregate.