I'd like to see the citation on that (there are no GM tomatoes on the market), I'd also like to add that the 'watery', huge, flavour-poor tomatoes you often get in Europe have been created by traditional non-GM breeding: http://blogs.discovermagazine.com/notrocketscience/2012/06/2...
There have been efforts to create GM-tomatoes with better taste, here's one example from 2007: http://www.scientificamerican.com/article/gm-tomato-tastes-b...