Actually Samsung is a horrible example. Samsung is the one of the companies selling components like flash chips, SoCs, and displays to tablet manufacturers like Apple. Since Samsung is one of the tablet makers than can source almost all their own parts in house, I don't see how the price of components is the reason they aren't winning in the tablet market.

Which is the best kind of correct ;) Don't feel bad; the alphabet soup of cellular air interfaces and protocols is very confusing.

Apple does make a WCDMA/GSM world phone. It's called the iPhone. Although WCDMA does have CDMA in the name, it is actually the 3G air interface used in GSM phones.

Is this a joke? Because many of the FOSS websites I have seen have exactly such a link.