iOS 4.1 on iPhone 3G

I just tried it today and I can vouched for a marked improvement in speed and responsiveness on my 3G iPhone vs when I had iOS4. Hurrah!

I can’t tell any difference, but then I didn’t really find 4.0 to be much slower than 3.1 in the first place. The number one reason I got an iPhone 4 was that, whatever the OS, my 3G took about five seconds to switch between English and Japanese keyboards.