Yeah, rdm pretty much has it correct.
You can check the comments on Russ's blog right here:
http://mcguireslaw.com/2009/07/24/ps...erything-plus/
Scroll down and read the comments. He clearly states that he double checked and that their is going to be a $10 / $10 feature for SERO owners, as well as all F&F plans. So looks like even older legacy plans will get some love too!