I can confirm that today I was shown just these three requirements (and the fourth, to connect to a social network, was not shown).  This was my first time logging into Dwolla this week though.

I already had the 30-day requirement filled and the Hub Page enabled as well so the last step was to verify my SSN.  After clicking on the link for that and entering my SSN (though had to restart the send money process from Mt. Gox after each step) I was then able to send funds today from Dwolla to Mutum Sigillum, LLC and shortly after those funds showed as being credited to my Mt. Gox account.