viaExtract from viaForensics (https://viaforensics.com/products/viaextract/) I used that, a combination of jailbreaking and dd when I performed an analysis on a dozen phones earlier in the year. However, I also have my own Cellebrite so YMMV

http://www.tormenting.net/kixngiggles/DSCF7017.JPG
http://www.tormenting.net/kixngiggles/DSCF7016.JPG

At one point I had a total of about 12 Blackberries, 8 iPhones, 8-10 Androids and a slew of other phones. viaExtract was able to do a lot of what I needed however, when it came to deleted information, depending on the phone, I would jailbreak it, create a dd image, drag it into FTK, DFF and EnCase

Not free (and no idea how well it works) but happened to see this in the SkyMall magazine on my flight yesterday:

http://www.skymall.com/shopping/detail.htm?pid=203635521&c=

edit: lol.. just noticed the small text at the bottom that says 'up to iOS 3.21'