Why not ? Seems like she's proficient in using the iPad because she already was iPhone savvy, as mentioned by the blogpost.

Given some time with an Android device, I think she would do just as well sampling apps on Android as she did on iPhone OS. Her way of launching an app, playing around and then pressing the Home button would work on Android just as fine.

I also believe there's quite a difference between a 2.5 year old playing around with an OS, and adults who may not be tech-savvy using a smartphone in a meaningful way.

Or to phrase it as a question, do you think those people would have as much trouble understanding the iPhone OS as they did the Android OS ?