I think 4.0 will have an entirely brand new UI. The standard iPhone UI is getting rather dated. I can't wait to see what iPhone OS 4 is going to look like. I think we need a better springboard. The current one is okay for one page, but if you get too many pages going, it looks cluttered. We need folders and different customizable views. When Apple originally designed the iPhone OS, I don't think they were thinking about thousands of third party apps... so they didn't design it with the App Store in mind. What do you think? New UI in iPhone OS 4?