Tropical Depression Ike has just recently been upgraded by Dan Abrams of MSNBC to Hurricane Ike, but I think that may be premature. Gustav is still a hurricane (barely) and Hanna is a Hurricane, so if Ike does make the grade very soon, that would mean that there are three simultaneous hurricanes all likely with US landfalls extant at the same time.
Most likely, Ike will be a hurricane by sometime past Wednesday AM.
Meanwhile, Hanna is expected to come ashore as a Hurricane but probably not a really strong one, somewhere between South Florida and the Carolinas, maybe Friday, though possibly as soon as Thursday. Ike, if it becomes a hurricane, may enter the Gulf.