It still amazes me that no-one in the mobile space is addressing the market for editing large, structured documents of the sort you might create in LaTeX. QuickOffice's word processor lacks support for styles, numbered headings, cross-references, bibliographic citations, equations, automatic table/figure numbering, and a table of contents, among other things. These features are a necessity for scientific/technical writing, and it's basically not possible to write something like a PhD thesis or textbook on a tablet today.

I wanted these features enough that I ended up starting my own project to build a word processor for the iPad based on HTML/WebKit designed for producing these kinds of documents. There's still some way to go before it's got all the capabilities I mentioned above, and it doesn't currently support any formats other than HTML, but I already have a lot lot of the structural features plus support for styles working. I have a beta available and there's some info up at http://www.uxproductivity.com/ if anyone's interested in giving it a try.

I'll be very interested to see what Google does with QuickOffice. Google docs is considerably more powerful but still falls short on some of the document structure features of LaTeX and Word. With the rumoured release of MS Office for the iPad later this year, competition could start to heat up a lot.