I like that it's centrally EVERYTHING [manageable/enforceable/auditable/deployable], always one of IE's ace cards. I don't like the current blank-screen bug where the page is there, but won't show until I pick another tab and come back... but I'm sure that'll be fixed.
There's also a bug with Flash Player 10.1 and 10.2beta and IE9. If Software Restriction Policy is applied to all files
including DLLs, as shown at
http://www.mechbgon.com/srp, then IE9 will crash over and over when visiting sites such as Newegg.com. This is serious, we're talking about NEWEGG here

so Jason, can you guys rattle Adobe's cage on this? I submitted a bug report but I doubt they listen to anything short of catastrophe.
BTW the bug also affects IE8 with Flash Player 10.1 and later on Vista and 7.