Not too bad for an iphone camera. Did you use the iphone EP bracket or was it handheld?
On public viewing nights, lots of people pull out their camera phones and try to take a shot through the eyepiece (with mixed success). Saturn is a tough target for these cameras.
shark bait it was just hand held, took me a few shots to get it right but I'm gonna give it another go once the weather picks up a bit. The trick to is to "rock" the camera, kind of like twisting it on an axis until you find the sweet spot.