I've found FreeRunner is nicer shaped in practice than the rather rectangular iPhone. The FreeRunner also feels nicer material-wise than the too "cold" iPhone. And you can't really _do_ anything with iPhone, like upload music to it (I don't have Windows or Mac OS), or use Debian on it... So it depends of quite a lot of things.
The openness has delivered the tangible benefit that there are no restrictions on how the user is allowed to use the device. If one doesn't value that benefit, then of course it doesn't matter.