Actually...

http://www.cs.adfa.edu.au/~gfreeman/qs.html

Now, don't get your hopes up too high: QuickScript is a typesetting language, akin to TeX. The difference is that QuickScript doesn't need a parser, but is in fact PostScript.

If you learn the tags, you can write a formatted document in a text editor, attach the QuickScript preamble and send it to a PostScript printer to be printed. I bet that, if you have a networked PostScript printer, you can send the document directly from your tablet to the printer.

Not that I have tried, I'm a wysiwigger myself. Unfortunately, the only existing QuickScript editor (don't expect anything like LyX, though) is written in Java, yet another weak point of the Nokia tablets. Maybe someone with the coding gene could write a Python QS editor? Maybe it wouldn't be that hard, with the Java example at hand?

The first time I came across QuickScript was on the pages of Eric Lindsay

http://www.ericlindsay.com/

where all sorts of Psion gems are to be found. He wrote that, after discovering and learning QuickScript, he never used anything else again.