Wikimedia, who manage Wikipedia among other sites have announced via their blog that they have officially opted out of Phorm's deep packet inspection system. In their blog article, they indicate that one of their concerns is that by opting out, they might somehow legitimise Phorm's system. After due consideration, they decided the appropriate action would be to opt out of the system, and they show an extensive list of URLs that have been removed.
More good news on a week of exceptionally good news on the Phorm phront.
Update - one of the commenters to Alex Hanff's announcement of this at nodpi.org points out that the wikipedia page on Phorm has already been updated