We have been analyzing statistics of our premium (paying) clients and the results show that the US is clearly leading the way in megaventory; more than half of our clients are US based companies/organizations. The US is then followed by European countries (EU & Switzerland) at 16% and then Middle East comes in with 7%. If we also consider the difference in internet users between US and EU [230M Vs. 340M] we see that the 16% EU figure is undoubtedly a very small figure.
To our understanding there are two main reasons for that a) Complexity of EU Tax requirements and b) unwillingness of EU users to work with cloud applications for their businesses (despite efforts put by EU to address that matter).
We'd love to see similar demographics of other -business related- cloud apps regarding their client distribution.