Just read some of the Yahoo comments. All the top comments are people complaining about no backwards compatibility and it's the same on many other sites. I don't understand the logic at all and I suppose if it escalates enough, Sony might consider making the PS4 backwards compatible (at least a limited amount like they did for the PS3, to shut people up about it not being backwards compatible), even though there's really no need for it. It's not a necessity, it's a feature.
I mean I wouldn't mind having that feature, but at the same time, it's not like it's a major inconvenience that it doesn't have it.