Oz & Rev,
The reason I threw in the extra bits was as a consequence of trying to design some guidelines for Missed Approach Analysis.
One of the major impediments is in terms of certification data for missed approaches - the mandatory requirements are few and the data required can be extremely expensive to acquire, if indeed it exists at all. The ability to somehow finesse the Take-off data is generally hindered by the lack of high quality AEO flight path information - climb data is not required for AFMs other than broad altitude/distance/fuel burn type data which is useless when considering 100 foot clearances from obstacles.
Boeing are right: the question gets down to legality and, more importantly, liability. I suspect that an OEM will only get involved in Missed Approach Analysis to the extent to which they are legally compelled. As I try to imply previously, it is a question easily asked but almost impossible to properly answer.
Oz, wander down the road and ask the boys to explain the AEO and OEI missed approach analysis for Goroka for the F28 - I am quite positive it will be interesting.