Logos are trade- and service marks which are protected intellectual property. You cannot use them without permission in a public capacity without authorization. What you can use (with proper citation) is the name (in speech or non-stylized text). I (as a corporation) can talk about a Macintosh or a Big Mac or an F-150 so long as I acknowledge that the name is owned by someone else. I can't use the Apple logo or any stylized marks (e.g. an exact replica of the iMac label) in my commercial or my marketing brochure. In fact, I can't use the product logo, period, even outside of marketing, without an arrangement stipulated by both the program producers and the product manufacturer (royalties/product placement/etc.). Sometimes logos creep into photos and videos accidentally and aren't cleared, but usually there is no need to take action for this so companies let it slide, especially if it's a small operation and an innocent violation.
I practically grew up using nothing but mac/apple in school but have no trouble using windows when I was able to afford one. In fact, it was my first owning a computer and this is true for most of my classmates also ended up purchasing a PC and were all loving it; who gives a crap how pretty the mac/apple is when you can buy a system that is cheaper and does its job quite well without breaking your bank. The money that I save would be best use for more important items such as car of down payment for a house. Unlike most mac/apple users, PC users doesnt live, breath around their computer 24-hours a day; we have other hobbies besides staring at the monitor all day admire every little superficial thing the stupid things looks. After all the hype thought out its existent, mac/apple user share is still a single digit percentage; what a looser. Talk about switch! 
