If you like looking at the planet through Google Earth then Pocket Earth is an excellent application that allows you to watch and interact with the glorious globe all the way from space. However, there's more to this than pretty pictures. You can search for locations, check the weather - including wind speed and humidity - get information about moon phases, sunrises and sunsets, and see what time it is across the world. There are even thermal maps.
Literally everything you want from the planet is on here. You can zoom in and out and scroll about from point-to-point to track distances between different locations. The graphics are great and the scrolling feature is smooth. There really is so much in this simulation that you should just get downloading it right now.