I just re-read that and am now seeing that part being missed in the various initial interpretations of FinCEN's guidance.   FinCEN's guidance only addressed transfer of virtual currency when "as part of the acceptance and transfer of currency, funds, or other value that substitutes for currency".  

But how would an EWallet provider know if I was sending from my EWallet to someone as part of a transfer of currency or if it was a gift, or perhaps I bought something and was paying with bitcoins.

From the director's remarks, it sounds like an EWallet would be an MSB (and thus need to obtain identity of the users then).   But almost no EWallets require that.     And I don't need an intermediary to transfer bitcoins anyway -- I can send right from my own client, without using an EWallet.

Or, are all peer nodes now considered "money transmitters" that must register with FinCEN as MSBs.

This isn't guidance from FinCEN, this is mis-guidance from the highest level.