Not trying to profile him, just that someone with a GTX295 says that a $400 5870 isn't worth the money because no games can use it's power it makes me raise an eyebrow. His card is more expensive and generally considered a bit faster even. Yet the 5870 isn't worth it? It just seems like an odd post to me, and as I'm sure you are aware people post things for lots of different reasons.
You are right, 'different' features would have been more accurate. I said that the 5870 has more features, I meant that in a gaming sense. I think the 5870 does have more feaures that a gamer would be interested in, but when you look at everything both cards offer it's more of a case of both offering different unique features vs. more from one or another.