I updated to iOS to 4.0.1 on my iPhone 3G. Was looking to using folders then I hit a wall. Desktop folders can only store 12 items.
This blog post “iOS folders; Usable, but poorly implemented” gives a good critic of this. I wonder why Apple made this decision, I’m sure it was UI concerns and practicality.
One comment on that blog also mentioned a lot more memory being used for folders. Another comment mentioned the inability to nest folders. Well, at least it still looks “purdy”.
And, no multitasking on 3G model. 🙁 That was expected.