Hovercam
You've left out my favourite.... http://www.hovercam.com - very good chief pilot, too.
4 publicly visible posts • joined 18 Jul 2008
No flying machine is complete without a kitchen timer somewhere in the cockpit...
http://www.crunchgear.com/wp-content/uploads/2009/01/spaceship_one_cockpit_in_flight.jpg
... it's a vital piece of navigation kit. Use it to work out where you should be, by knowing how long it's been since you were somewhere else!
This isn't made very clear - and was the source of your trouble (and mine!)
'Restore' mode is where you have a picture on the screen, showing a USB cable heading towards the iTunes logo.
'DFU' mode involves a blank screen. DFU mode is a necessary part of the process, although I'm unsure exactly what happens in this mode.
I took several attempts on my Mk1 iPhone before I appreciated this difference, although to be fair, the Pwnage tool does attempt to help you get your phone into DFU mode.
Users need to know about the two modes, and not to confuse them!