[thaumasiotes]

This is incorrect in multiple ways.

- Apple says this because it doesn't want its trademarks to become common words ineligible for trademark protection (like what happened to xerox and kleenex). But it can't stop people from referring to things however they please; this is nothing more than a statement of how Apple wishes the world would work.

- If I say "I bought two Apple computers", Apple is still a noun, not an adjective.

[Natsu]

> But it can't stop people from referring to things however they please

Even if they send C&D notes over improper usage?

[thaumasiotes]

Yes, if you post "I bought two Macintoshes today" to your blog or write it in a commercial article or anything of the kind, Apple has no authority to prevent that (and a trademark likewise does not apply to such behavior). Their only authority is to stop you from using their mark on your unaffiliated products.