I was in Dubai last month and my continental europe-type round 2-pronger worked fine at my hotel (Park Hyatt). Also, I've found that most of the nicer hotels in Middle East (who cater to business clientele) have adaptor plugs (and transformers for that matter) available for guests to borrow in the event you forget one, or lose it, or, as in my case, have it confiscated by security police at the border (this occurred at another ME country for reasons I still can't figure out except for harassment purposes).