Updated iOS4 on iPhone 3GS

This is the last time I'm going to see my iPhone OS 3 GUI!

After upgraded, the default wallpaper automatically appears. I simply love the folder option. This is a much needed option for people who have lots of apps who need categorisation. The folder function is very natural. I organised all my games into 3 folders. And the 3 folders all having the same name "Games". 


The speed of loading apps seem significantly faster! (Every time I upgraded my Mac OS X on my desktop and notebook, without reformat, there is speed improvement. So, I shouldn't be surprised that iOS4 is speedier, right?)