The Rhodes framework is a platform for building locally executing, device-optimized mobile applications for all major smartphone devices.

Virtual cables between any audio source and any speaker in your home

UrBackup - Client/Server Open Source Network Backup for Windows, MacOS and Linux

iDOS - DOSBox port on iOS

This is an Objective-C library that helps to easily convert a UIImage with a QR-code from NSString with just one line of code.