Web Based Restaurant POS is a user-friendly Point of Sale system for restaurants. It features touch screen optimizations (of course, it can be used with normal screens, too), magnetic card access (a waiter will slide a magnetic card through the card reader to log in), orders automatically printed in the production departments (kitchen, bar, etc.), advanced reports which can be filtered and sorted, graphical representation of reports, several access levels (administrator, manager, waiter, etc.), an easy-to-use recipe system (products contains several ingredients), and inventory updated in realtime based on product recipes. An online demo is available.
J2ObjC is a tool from Google that translates Java code to Objective-C for the iOS platform. It enables Java code to be part of an iOS build, as no editing of the generated files is necessary. The goal is to write an app's non-UI code (such as data access or application logic) in Java, which can then be shared by Web apps using GWT, Android apps, and iOS apps. J2ObjC supports most Java language and runtime features required by client-side application developers, including exceptions, inner and anonymous classes, generic types, threads, and reflection. JUnit test translation and execution are also supported.
C4 is a creative-coding framework which lets you build expressive user experiences and create works of art on iOS. It gives you the power of the native iOS programming environment with a simplified API which lets you get down to working with media right away. It lets you build artworks, design interfaces, and explore new possibilities of working with media and interaction.
DSFoundation is a foundation enhancement library for Objective-C. It includes an IOC (Inversion of Control) container, translation (serialization and conversion) to and from Objects, YAML, and XML, automatic KVC adaptation and compliance, logging through an integrated Log4Cocoa, regular expression extensions, and much more.