Robert_Charlton - 2:37 am on Apr 2, 2013 (gmt 0)
Possibly to clarify, two excerpts from Google's official article on the topic...
Updates to AdWords trademark policy
Google Advertising Policy Help
While we will not prevent use of trademarks as keywords in the affected regions, trademark owners will still be able to complain about the use of their trademark in ad text.
...With respect to use of trademarks in ad text in the affected regions, advertisers will be able to submit trademark complaints.
The start date is 23 April 2013.