The other thing to consider is when will all of our home screens get overly bloated? If developers continue to make apps that are single-serving, we'll have hundreds upon hundreds of these apps that we want on our devices. I don't want it to get to the point where Apple has to add the ability to have even more home screens, where it would then take a couple minutes to find an app!
I'd just let the market decide. With so many identical-looking screens of apps, most iPhones already are getting cluttered. I expect that we'll soon see a better (hierarchical) Springboard.
