IGOs TerraWeb3D (TW3D) provides real time navigation on PC, tablets & Smartphones. NO PLUG-INS NEEDED with the new html5/webgl standard. TerraWeb3D enables millions of users to navigate TheTerrestrial Globe in 3D from space to street level. The Ipad application allows navigating on IGN database and on very detailed area (Cluny and Leiden 3D database made by Aerodata). TW3D works with OGC standard protocol.