2Sky is a complete user-friendly commercial astronomy planetarium application for the PalmOS platform realeased by Kevin S. Polk as open source. Features include: stars, deep sky objects, planets, comets, asteroids, moons of Jupiter, meteor radiants.
Love it! I have competing programs Astromist and Planetarium. 2Sky is just simply intuitive! The display is so easy to navigate. I can find my bearings so easily. The information I need at my scope, Altitude and Azimuth of an object, is immediately shown. The program is not cluttered with unnecessary options, it does exactly what I want for my star gazing. Thank you! Chris