I waited a long time to install the jailbroken 3.1. firmware. As a matter of fact, it took such a long while before definate messages of reliable 3.1 broken firmware appeared I was thinking if it was still worthwile.

But finally – I upgraded. Used pwnage (turn on advanced mode and disable ‘activate phone’ if you’re using an operator-locked iPhone). And I quickly saw what I was missing again.
- SBSettings
Toggles wifi/Bluetooth /location and other battery consuming servces on yout iPhone. All that accessible from a simple swipe of the finger instead of navigating to your settings panel.
- Screensplittr
Enable tv-out from your iPhone screen.
- Terminal.
Unix access to yout iPhone’s system