I realise that, but I would have thought there could be demand for a program to offer tradefair markets in the betfair style - assuming betfair cease offering such markets on their platform.
probably just a program reading the average of the spread firm prices and posting these tradefair.
just looked at the volumes on tradefair for today's up/down ftse - a massive 2 quid matched so far on an exceptionally volatile day !!
in austria and germany you are not allowed by law to bet on games of "chance" - financials are viewed as this by betfair so they won't allow it - football, horses ok but anything a bit different isnt eg novelties and financials.