Amazing things David's made
Designed over 250 mobile phones and 300 mobile services between 1999 and 2005 ;)
Designed the 1st electric charger and the 1st hydrogen gas-station in 2010-2011.
Founded the startup Good Spot in 2012, the 1st collaborative platform dedicated to tourism experiences.
And finally founded MonP'tiVoisinage in 2014 ! :)