Not sure how many people are aware of this software, I'm usually a little slow on some things but a friend directed me to this a short time ago and I just had a quick look at it and I was pleasantly surprised at it's functionality.
I would hazard a guess that this is definitely not a forensically sound tool, however it has some very cool tricks.
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Free software. I tested on my iPhone 4S a short time ago and this is what I found.
The software gave full access to my phone regardless of the keypad lock, did not ask for a password just loaded the phone and gave me full access to photos, apps and just about everything on the phone.
Far more interesting was the fact that it completely bypassed the password on a security app for hiding videos etc. Normally you launch the app and have to enter a password, then get access to the content. i-fun just gave me access straight away no password required.
There were some things it didn't give but those two alone means I'll add it to my toolkit, and above and beyond quite good for normal phone management for transferring photos etc rather than iTunes.
Edit After a bit more testing it appears the phone may need to be unlocked/JB for it to work properly. My phone is not JB but it's unlocked from the AT&T network to use in Australia, so this appears to have some bearing on the functionality