Yes...FFO receives romance submissions in the slush pile now and then. It's been a top genre for many years in the book trade, sometimes trouncing speculative fiction sales as a whole. The expansion into romance-related sub-genres has been heavy, including SF and fantasy. Here are a couple of related articles:

The 'king' of bodice-rippers, Harlequin, now has a new imprint for teens, Harlequin Teen, with a speculative edge. Yes, the article mentions Stephanie Meyers; her stories blasted this market open.

SF Scope has reported on the paranormal romances noted in the Romance Writers of America's 2009 RITA and Golden Heart Award.