If you’re wondering why Eucalyptus is not yet available, it’s currently in the state of being ‘rejected’ for distribution on the iPhone App Store. This is due to the fact that it’s possible, after explicitly searching for them, to find, download from the Internet, and then read texts that Apple deems ‘objectionable’. The example they have given me is a Victorian text-only translation of the Kama Sutra of Vatsyayana. For the full background, a log of my communications with Apple is below.
I'm sure almost 90% of iPhone applications can be made to seek out & display offensive content, including Mobile Safari.