What are you talking about? I'ts like 2-3 seconds faster. A second here or there doesn't sound like a lot but when you're opening, closing, and switching apps hundreds of times a day (plus loading and swapping web pages) it really adds up and makes a difference. Does that make the 4 useless? No. And sure, I would say it's a marginal upgrade from a 4. But in daily use I can see the speed being useful. Moving from the 3G to the 3GS was worth it, probably the same here. Coming from a 3GS , as I am, and many others are, it's a HUGE upgrade.