I have several content types that are scheduled events. As things are now, I can only select article as the og type. According to http://developers.facebook.com/docs/reference/opengraph/object-type/event, this is what it should be listed as. I tried to hack the module myself, and I was able to add the event og type. Facebook didn't like it because the page also needs event:start_time. My node does have the start date time, but if I'm reading the Facebook error correctly, it want's it in php date_time format. Mine is in a readable format.
Do you think this could be possibly added to the module?