TNT2007 is been launched following the overwhelming success of earlier Nanotechnology Conferences. The TNT2007 edition (September 03-07, 2007) will be held in the Kursaal congress facilities (San Sebastian, Spain). This high-level scientific meeting series aims to present a broad range of current research in Nanoscience and Nanotechnology as well as related policies (European Commission, etc.) or other kind of initiatives (iNANO, FinNano, GDR-E, etc.). TNT events have demonstrated that they are particularly effective in transmitting information and establishing contacts among workers in this field. The TNT2007 structure will keep the fundamental features of the previous editions, providing a unique opportunity for broad interaction.