How can I use multisig / split keys using My Wallet? I was sure that My Wallet supported multisig, but I can't seem to find it now.

How can three users of My Wallet create an address that is only spendable if at least two of them cooperate? Or is this not implemented yet? If so, when is it due?
This is the latest info I have seen from Ben who runs blockchain.info.


  Question: The escrow function seems to be gone. Will it return?
  https://blockchain.info/wallet/escrow?
  
  Ben: The escrow feature was removed because not enough people were using it. I think maybe it was just too confusing/not well documented enough.


I did not see any info on if/when it will return.