i already replied to this once, here's my opinion:
a) I think he gives too much credit to XP and compliments it's user interface even when he says OS X won. That is just gloating.
b) He emphasizes on Mac OS X's lack of a 2 button mouse. So frickin what. Buy a 3rd party one and be done with it.
c) I know he tells us about the login and how you can switch between users in XP, but how is that secure? For some odd reason he also blames OS X for Internet Explorer??? I didn't get it.
d) Chat: does ichat have video conferencing yet...i didn't think so. so how can you compare that feature?
oh and he wrote: "Messenger so surpasses Safari in advanced conferencing that XP deserves more than one point for this."
e) but i wasn't dissapointed with the rest of the articles so far. I do think iPhoto should loose but that is my own opinion. I would of liked it to be an aqua app instead of a brushed metal one.