As it happens, I wrote that announcement, and no, fheroes2 is not a port to the iPhone. In fact, I can't even envision how such a game would work; it seems to me that the interface is simply too big to be able to fit the necessary information onto the iPhone screen. I'm a pretty poor one to pass judgement, however, seeing as I've never used one before
If you want to toss some thoughts around, however, I'm happy to entertain the idea and see if we, the fheroes2 team, can do something about it in the future!