Also don't forget that their dock connector does a bit more than USB<=2.0, namely audio/video up to 1080p. The signal quality has always been a strong point as

Also don't forget that their dock connector does a bit more than USB<=2.0, namely audio/video up to 1080p. The signal quality has always been a strong point as well, at least for a portable device. It's no wonder many audio professional are using iPads nowadays (well ok, the excellent audio frameworks provided in iOS are probably the biggest reason for that).