Since I still have two iPhones (a 3G and a 3GS) with almost identical content, I decided to compare the speed of some common operations: the boot time, and the launch time of some applications.
I have chosen some applications that I use very often: OmniFocus and Twittellator Pro, and some that are quite heavy. The [...]

How better is the 3GS camera compared to 3G? This better:
I have kept the proportions to take in account the different resolutions.

I now have a 3G and a 3GS which are a copy of each other (after restoring the 3G backup on the 3GS), so I will be able to publish some more tests soon. [...]