In 2006, Europe was the largest market for mobile gambling, but "telecommunications analysts predict that Asia will catch up soon." At the time, a limitation of suitable phones in Asia and unclear legal situations in certain locales was limiting growth, with legal mobile gambling in Asia restricted to Hong Kong and China for sports and lotteries. Only in the Philippines and Macau was casino-style mobile gambling allowed. There were analyst projections in 2006 that the mobile gambling market in the Asia-Pacific region would generate revenue of $3 billion in 2010. In 2005, Jupiter Research forecast that global mobile gambling services would generate revenues of more than $19.3 billion US dollars by 2009. In 2010, Gartner analysts showed the 2009 global mobile gambling revenues at $4.7 billion and forecast $5.6 billion for 2010. Such a large discrepancy between the 2005 forecast and the 2009 reality was attributed to the unexpected 2006 US prohibition of all internet based gambling.