Sorry, found my own answer.
Rules Compendium pg 85.
I thought they had changed it, couldn't remmber where.
Thanks
They did in the Spell Compendium pg 4
"Magic Items: Activating a spell completion item, activating
a spell trigger item, or drinking a potion is a standard
action even if the spell from which the scroll, potion, or
item is made can be cast as a swift action. In other words, it
takes a standard action to drink a potion of quick march(page
164), even though casting the spell itself requires only a
swift action."
But it looks like the Rules Compendium changed it back again.
"Activating a spell trigger item takes the same amount of time as the casting of the spell the item stores, but activating a spell trigger item doesn't provoke attacks of opportunity."