Just the one, so far.
“Robin worked with CycleStreets Ltd. to design and implement enhancements to our cycle routing engine. His key skills lie in the design and implementation of high performance, low level programming. His consultation enabled us to channel our development efforts and distinguish the realisable goals from longer term programming challenges. Robin was a delight to work with and was always pleased to answer our complex technical questions.” — Simon Nuttal, Routemaster at CycleStreets.net