[samlittlewood]

It is! Although what I missed out from above is that whilst the API and it's documentation is the deliverable - we would, to the best of ability, try and minimise risk whist developing it. Eg: by doing small performance experiments, drawing on prior experience, thinking about the evolution of resources within the API whilst writing samples, and looking at how other APIs handle similar things (but be careful - they may have had to perform heroics to achieve their behaviour).

Whilst the official progress is top down, the duck's feet are working hard feeling along the bottom to check for obstacles.