AstroAid
I am working on a new iOS app (and my first “real” app on that platform) called AstroAid. I’m using this app to get some practice developing iOS apps, and to discover how to do many things, like creating a universal app (running on both iPhone/iPod Touch and iPad) and publishing it via the Apple App Store (many hoops to jump through). While app is relatively simple, it’s not trivial, and I believe will be of some use to amateur astronomers.