I'm pretty sure not many of my friends know the difference between IOS and Android.
If I asked everyone I know outside of work what kind of phone they have, the answers would be something like this:
iPhone
HTC
Nokia
iPhone 4
Samsung
Motorola
etc
I'm not even sure the responses would be particularly different at work (I work in a technical environment). Perhaps tomorrow I'll try it and see if anyone actually mentions the terms "IOS" or "Android". I hadn't realised until very recently that lots of different phones ran the same operating system, and I'm reasonably technical - I just don't have much interest in phone technology beyond making sure the one I buy does the things I want it to do (make phone calls, sync with iTunes) without me having to learn how to work something new.
My first mobile phone was a Nokia. Over the next 15 years, every phone I had was a Nokia. There were probably "better" phones on the market, but I liked Nokia, I knew how to work them, and I couldn't see any reason to change. When the iPhone came out, I thought "I wouldn't need to carry my iPod around everywhere as well as my phone if I bought one of those", so I got an iPhone. I like my iPhone, it does everything I want it to, and I know how to work it. Which probably means my next phone will also be an iPhone.
In many respects, despite having a technical profession, and being a "geek" in many areas which interest me, I'm actually just a typical consumer. I buy stuff from brands which have made stuff I like in the past.
Most consumers recognise brands, not technical specifications