Starting Out on Mobile Rips

[Pingus!]

Hey all, I'm interested in jumping around to different ripping methods for different consoles and I was wondering, can anyone point me in the direction of ripping mobile games? I can't find ISO's and I'd like to know how too. Also, does anyone know of a tutorial. That would be great... Thanks!
~Anex

[Pingus!]

Okay so I got an IPA of a game called Crush The Castle. I tried to run the .pngs into paint (Windows) and it gave me an error that it wasn't a recognizable bitmap file. Is this because the IPA is corrupted? Or is it because the images are compressed? If they're compressed, how would I decompress them? Is there a tool or way to do so? Any help is appreciated, thanks.

[The 100 Mega Shock!]

iOS "PNG" files are not actually valid PNG files, after they've been modified by the iOS compiler they won't be recognized by other image decoders. I think there are applications you can find online that can reverse this process, or if you have a Mac with the iOS SDK their version of pngcrush can do this out of the box.

[Pingus!]

With that said... I've made my first mobile sheet ever!!!!!! I just used iFunbox xD (good thing I still have an iPhone 4...)