Actually, in a certain way it makes sense for a large, commercial company like Yahoo! to ignore and brush off open-source, because advertising or even mentioning open-source applications won't make them any money. Think about it - freeware can be loaded with advertisements and such that link to for-profit stuff that partners with such an Internet company. I've heard that many commercial and free games even sell space inside the games for advertising.
By comparison, it is difficult to do that with open-source, because anyone could grab the source, re-compile it without the crap, and pass around a clean copy of it. That and making open-source works for profit is usually a bit self-contradictory - not always, but with GPL it certainly is, putting two opposing ideologies that don't really mix against each other.
Bottom line, any way you slice it there isn't any real profit to be made for a commercial company to give open-source much attention, at least with games.
