In Europe, Brits were most worried about mobile security, with 27% of respondents stating that this was their biggest mobile shopping concern, compared to just 14% of Italians and Japanese. Despite growth in tablet sales in Western Europe, up 142% year-on-year in the first half of 2012 according to research from GFK, Thailand came out top for m-commerce tablet adoption with 35% using their tablets for shopping, compared to closest European market Italy at 18% and the UK at 14%.