Earlier quoted context omitted.
There are no power-IOS-users :)
I don't exactly know what you mean by this. At this stage both iOS and Android are limited compared to the abilities of a desktop. What is considered tinkering is not necessarily being a power user.
For example, you can email yourself an apk that of a program that was removed from Google Play and install it (I did this - developer decided it wasn't worth his time to support the app but was kind enough to send me the file).
To me that's an example of a power user - something that IOS does not allow.
To take it further - I imagine that one can't be a power user of an IOS no more than you can be a power user of a toaster - there is one way to insert and remove the bread, equally available to all.