Naturally, some folks on this side of the pond are worrying about Iran using its newfound spaceborne capability to rain nuclear fire down on Washington D.C. or Tel Aviv. But I don't see too much to fret about... yet, anyway. What Iran did today is much more in the league of what the Soviets did with Sputnik. It's a few magnitudes order of greater sophistication to build a working ICBM.
That said, as someone with a life-long interest in aerospace efforts - no matter who it is who's doing the effortin' - I shall be keeping an interested eye on Iran in the near future.