On the Planetary Society Blog (one of my favourites), Emily Lakdawalla reviews two apps that put virtual globes of the Moon and Mars on an iPhone or iPod touch: Moon Globe, which is (now) free, and Mars Globe, which is 99 cents, both from Michael Howard. “Mars Globe is seriously one of the reasons I went with the iPhone instead of the BlackBerry when I was ready to upgrade to a smart phone,” Emily says.

Previously: Moon Maps and Star Charts for the iPhone and iPod Touch.