Hans Hagen
I'm on and off implementing an fo engine (foxet) and run into fuzziness with regards to the specs (a bad omen is that that there i could not find a good manual and the ones i have are made up rather poorly, which indicated that we're not so much dealing with high end typesetting, but with regular batchprocessing of not too complex documents).
The longer one has to read in the XSL-FO specification, the more one resents having to do so. If you are lookiing for a road towards creating pdf documents, then ConTeXt is like an actual freeway with perhaps a few potholes and missing roadsigns, where XSL-FO is a set of directions on how to create a jungle road, written down by a civil engineer with terrible handwriting mirroring a quite chaotic mind who nonetheless insists on doing everything "the right way"(tm). Various people have been busy trying to build that road according to the specifications, and some of the toll (payfare) roads are in fact reasonably close. I'm speaking with a certain fondness in my voice really, because I am also busy implementing a (commercial) fo engine using ConTeXt. Greetings, Taco