Moon Atlas
If you are working on one of the many 100-feature observation programs, interested in the Russian or US landing sites, or just fascinated by the stark lunar landscape, this app is for you. I have it running on my PC laptop, my iMac desktop, and my iPhone 4, and its a valuable asset to my lunar observation sessions. It helps you find craters, seas (mare), mountains (montes) and about a dozen other types of features by name. It identifies these features on the map at a click and even shows you what parts of the Moon are tipped toward Earth in libration. There are too many subtle features in this app to mention. Great app - worth every penny.
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