Hi, ShadowTrac is free for a short while... http://itunes.apple.com/us/app/shadowtrac/id409421836?ls=1&mt=8 http://sites.google.com/site/shadowtrac/ It's a bit quirky but it still as far as I know the only Sun/Moon calculator that is fully 3D and uses shadow maps for shadows. Quite useful for photographers or solar panel fitters. It's Xplatform so uses openstreetview map sets, but they are pretty good these days for most areas. ShadowTrac for iPhone Find the Sun/Moon rise and set times of a given time and location, ShadowTrac will use the iPhone's compass and GPS to display in 3D world where the Sun/Moon positions are at currently in 3D, also the positions of the Rise/Set of the moon and Sun are displayed. Maybe then bounce over to my Studio Light Rigger App Cheers Steve
