MSMovieRecorder is a framework that allows the user to record movies. CIFilters can be applied to the recorded frames, either to provide image correction or interesting effects. MSMovieRecorder works in both 32- and 64-bit applications and is licensed under the BSD License.

This free service for iPhone and Mac developers is based on the open source project CrashReporterDemo, which itself also includes other Open Source Software like PLCrashReporter.

When developing an iPhone or Mac OS X application there will always be bugs, and some of these bugs cause your app to crash. The earlier these problems can be identified, the better the stability of your app gets. When the app crashes the iPhone and Mac OS X will create a crash report file and these files are what the developer should be very interested in. Now for iPhone apps, Apple introduced a system which provides this data once the app is released. But there is always a time gap of days or weeks once that data is available for new releases, also beta releases cannot benefit from that. On Mac OS X these reports are also send to Apple, but there is currently no way to get them back.
This is where CrashReporterDemo and MacDevCrashReporter.com comes in. The project provides clients for iPhone apps and Mac OS X (currently in beta) which allows each developer to get these reports for any release and right away.

ASIHTTPRequest is an easy to use wrapper around the CFNetwork API that makes some of the more tedious aspects of communicating with web servers easier. It is written in Objective-C and works in both Mac OS X and iPhone applications.
Check it out and get more information here

KNAppGuide is a Cocoa framework for embedding “guides” into your application. Visually inspired by Apple Guide from the System 7 and 8 era, this framework brings this idea to the modern world of Cocoa.

ZSync is an new open source syncing library designed to allow easy syncing of data between an iPhone/iPod Touch and the OS X Desktop. ZSync utilizes the BLIP library and Apple’s Sync Services to allow easy and seamless syncing of data.