Seems to me that there's other aggregators out there and Safari itself infringes EVERYONE's copyright, so that's those two out of the way - no case, Apple.
If an app was poor quality or limited functionality, approval time would have been the time to maybe, not approve the app, but apparently Apple made this 'mistake' over 850 times, so methinks it wasn't a mistake, pre se.
If the apps didn't do much, chances are, at $5 the developer wasn't going to make much money.
So… what have we got?
- apps that apparently have enough functionality to satisfy hundreds of people a day, no matter how trivial the function is, and lets admit, trivial functionality doesn't preclude anyone from the app store
- aggregators - are you telling me all other aggregators have licensed their content? Is that even possible?
- aggregation is a service is it not? maybe not a huge service, but it does a job for you instead of you typing "boobs" into google and filtering the results yourself
- infringes LESS copyright than Safari or any of the other web browsers approved for the app store
All we've got left is the high-ish price, which given the passion with which many pundits seem to be suggesting that app store prices are too low, this developer might be helping the better developers to get more for their labours.
Seems to me there's a lot of fart/cat/dog/lighter/flashlight/dolist developers snickering into their hands right now, that 850+ more useful apps than theirs got kicked out of the app store and they're still in there!
Sorry, but for all the reasons given, nothing justifies the action Apple's taken, no matter how 'right' it feels.