answer:This is where it would be handy if Apple allowed for removable storage, or easily using an iDevice as a USB Flash drive, as it is far easier to undelete files from something that is treated as a normal hard drive than from a sealed box with proprietary standards. I cannot think of any tricks right now (I’ve been up for >20 hours, and thus am a bit fuzzy) but I will say that your odds improve greatly if you don’t do any writing to the storage like installing apps, syncing songs, etcetera. That includes the cache for the browser; even surfing the web may overwrite the file fragments that remain.