I'd flub your interview with my iPhone, but you'd never know that I had a drawer full of Android and Blackberry devices.
iOS? I would never hold it against them. Reliable phones with reasonable defaults, and you don't have to root them to back them up. OTOH, I would be skeptical of a tech who had a non-rooted Android phone. It shows a lack of care for privacy, security and reliability. For one, I know that they sent my contact info to Google and it's already mingling with the Google+ data to build a social network.
Then, an applicant who's rooted their Android and hacked it to death... while job hunting, seems to not understand what it is to tinker with a production systems. They're lucky if their phone hasn't crashed or isn't out of battery by the time they get a call.
Somebody who's customized Android to their liking, firewalled their apps, de-Googled and can reproducibly customize other Android phones to stable settings... that shows some thought and skill.
But any Android bigot I've met has been an underemployed tinkerer who's had their priorities mixed up. iPhones are good phones, lucrative platforms and good techs recognize that.