I noticed something very odd today - and I am 99% sure it was a total fluke but I jailbreaked a new unlocked (italian) 8GB iPhone 3G with pwnagetool 2.0.1 and it is amazingly fast and snappy!
On my original 16GB 3G and the current 16GB Apple replaced it with downloading applications from AppStore have a long installation time - instead of taking a few seconds I find them taking 10-20 seconds or longer to finish the installation (and I am talking about the part where it says "installing" not the loading!).
It was almost instant on my original 2G iPhones but not on the 3G - or before I jailbreaked the new italian phone but it is now.
I doubt that pwnagetool 2.0.1 was the cause of the difference but its amazing to see how much quicker it seems to load than before.
Has anyone else seen anything like I described?