>To use any new technology, we have to spend many, many time (to study).. It means money. So, free database doesn't exists..
Very true.
Anyway, many people and companies in developing countries (and not only there, see the case of Munich, and other German cities!) are looking for programs that don't cost hundreds or thousands of dollars for each client.
Difference in opinions hath cost many millions of lives: for instance, whether flesh be bread, or bread be flesh; whether whistling be a vice or a virtue; whether it be better to kiss a post, or throw it into the fire... (from Gulliver's Travels)
