Ok, so these seem biased, because majority of Android smartphones can in fact be use as equal devices - you can connect a keyboard, fire up VIM or anything else in chroot and you are good to go. 
If battery power is what you are after - not only there are amazingly long lasting android phones, there are aftermarkets batteries for any model with removable lid.<p>He even directly addresses the point iOS devices are blackboxes.<p>So yeah, I call bullshit on this one, even thou I can see where he is coming from with this.