http://www.w3.org/TR/2006/WD-xbl-20060619/#eventxbl introduces EventXBL.trusted which basically has to be implemented by all objects implementing the Event object. Given that this information might also make sense outside of XBL perhaps we should lift the text and put it on Event directly?
In http://lists.w3.org/Archives/Public/public-webapi/2006Mar/att-0092/23-webapi-minutes.html#item11 there was some WG discussion indicating that this wouldn't address all possible use cases though that isn't entirely clear to me anymore.
In an action taken upon that discussion it was suggested to http://www.w3.org/mid/[EMAIL PROTECTED] defer this feature indefinitely. The WG hasn't discussed the outcome of this action.
First raised on http://www.w3.org/mid/[EMAIL PROTECTED] public-appformats.
-- Anne van Kesteren <http://annevankesteren.nl/> <http://www.opera.com/>
