MyWi is a more advanced and useful tethering interface than the stock one, which the iPhone has by design. So how exactly is tethering illegal, if it's a service offered by carriers through iOS?
I'm sorry, but where does it read that jail breaking means stealing apps? And from what I have read, you can torrent apps and use programs to "crack" them without jail breaking, thus further proving that jail breaking and stealing are not correlated.
I agree WiFi rarely gets toggled, but if I want to, I don't want to open the settings app and navigate a few times. Plus, you're forgetting much more commonly used features like SSH access, bluetooth, screen brightness, act.
I don't think you understand FCU. First off, iOS 5 runs as fast if not slower on an i4 than iOS 4, due to it being bloated with more features (note I'm not saying iOS 5 runs slowly on the i4). FCU cuts the stupidly drawn out "pretty" animations Apple placed in iOS so that instead of viewing the silly fade in or fade out of settings, when I select settings, it's instantly open. So no, iOS or the hardware cannot mimic the benefits of FCU (unless Apple changes it or makes it a user option in the future.
I understand fully if jail breaking isn't for you, but please criticize with factual honesty