Yeah I edited saying it doesn’t seem to have 4G, however it’s still not official as there are rumors of something similar to 4G but not exactly that.
With that said, 4G drains the battery even more so than 3G does, which isn’t good.
Only thing from an upgrade I may consider of value is a camera and that alone may make me reconsider as I take quite a few pictures with the phone as it’s always on me.
Video describing the camera
Second perk that may make me reconsider is Siri, which if nothing else is a cool gimmick
Video on Siri
Plus finally, if I understand it right, many new Apps may not be 3GS compatible being made specifically for new product.