The excellent AstroInfo by Pruss was updated recently. "AstroInfo is a full-featured sky chart / planetarium application for amateur astronomers - or just for people who want to check the sunset time or see where Jupiter is.
Here are some key features of "AstroInfo": Plot planets, the sun, the moon, stars (over 860,000 stars included, with 99% complete coverage up to magnitude 11), deep sky objects (includes Messier, NGC, IC, Bennett, Caldwell, Collinder and sci.astro.amateur catalogs) and constellations.
Zoom in and out, and move around.
Real-time or accelerated display for the present time, or a past or future time.
Rise, set and transit times for sun, moon, planets, stars and deep sky objects.
Lunar phase.
Red on black night mode.
Measure angular distance between objects.
Draw Telrad / eyepiece field-of-view circles.
RA/Dec/Alt/Az data for all objects.
Customize colors (e.g., draw stars in white and Messier objects in red).
Web lookup of deep sky objects (on devices with Blazer mobile browser).
ARM optimized for newer devices.
Support Hi-Res+ Palm devices."