I was getting responsiveness problems on my 8G iPhone 3G (apps taking a few seconds to launch, UI stutters etc.). It turns out it wasn't using the latest firmwa

I was getting responsiveness problems on my 8G iPhone 3G (apps taking a few seconds to launch, UI stutters etc.). It turns out it wasn't using the latest firmware. I bet DHH isn't either. If you've got a 3G iPhone, go to Settings->General->About and see that you're using 5A347. If you've got 5A345, that's the old, stuttery firmware and you should back up your phone and do a restore (power off, hold the home key when you connect to your computer, iTunes will prompt to download the new firmware). Usual disclaimers apply. :)