LFR has trinkets - http://beta.wowdb.com/items/armor/trinkets?page=22&sort=-level - The ilvl 640 ones are the LFR trinkets. They're exclusive to LFR also.
well thats a change i was'nt aware of, were'nt they not going to have trinkets in the loot tables for lfr to force people into flex (or normal, or whatever they want to bloody call it nowadays)