Apple Anyway to back up iPhone 4

[yusuo]

So i'm going to go ahead and update my old iphone 4 tomorrow, I'm using it as a spare phone now but its taken me a while to get it how I like, I have many themes on there, that i've basically downloaded the deb files extracted the png's and replaced them within the main framework of the phone as to not use resources on winterboard.

Now if I go to ios 6 tomorrow and I decided it's not really for me on the iphone 4 (basically incompatible apps etc etc) is there anyway i can just go back, I know I can downgrade with blobs saved (already done) but I dont really want to mess around with the whole setup again.

So basically what I'm asking for is a disk cloner or imager for iPhone 4.

Any ideas

 

[Fresco]

I've never installed themes on my I devices, but a quick google search got me to backboard. Basically it backs up your themes, folders and mobile substrates settings. Check it out!