According to the new Terms of Service Agreement (PDF File), those who continue to use PSN must essentially waive all rights to participate in new class action lawsuits against Sony and agree to resolve such matters on an individual basis only.
To quote: On September 15, 2011, Sony Network Entertainment America Inc. ("SNEA") will transfer its online services operations, including your wallet and the funds in it, to Sony Network Entertainment International LLC ("SNEI").
183w ago - Update: According to TheSixthAxis.com, SCEE's Community Team Leader MusterBusterconfirmed this is a typo, to quote: "This is a typo - the number of activated consoles is STILL 5. You should receive an updated email within the next few days."
Several months ago Sony sent out a warning to those involved in PSN game sharing, and recently the European PlayStation Network Terms of Service (linked above) has been updated to reflect this.
Although the US Terms of Service still state that "You can download the title to up to 5 different PLAYSTATION 3 systems" the EU counterpart now states only three, to quote: