In a less straightforward sense, I think it's just too goddamn hard to process these small, insignificant "games" in comparison to the kinds of games I've been working on for Game Revolution. Frankly, I think the App Store is a death trap honestly. It's too bad that so many talented, creative developers have to be turned away from "real" game development (big budget or not). The job market certainly doesn't help this situation.
Anyways, check out my Soccer Sudoku 2010 Review over at Game Revolution, and look for more thoughts on iPhone gaming tomorrow.