GitHub should need no introduction to developers. Plenty of people use it to discover and share code and projects. There are already plenty extensions and apps available for it that let you do more on it. These 4 GitHub iPhone apps are worth a look:
GitHawk: helps you keep up with your notifications. You will be able to read and react to issues and pull requests and browse repositories. This app is fully open source.
CodeHub: this GitHub iPhone app lets you browse and access your repositories on your iOS device. It lets you access multiple profiles, update/comment/manage issues, edit files, access gists, and do a whole lot more.
Working Copy: lets you access Git repositories on the go. You can clone them for local access on your device. Its code editor has syntax highlighting for more than 50 programming languages.
Codeanywhere: an IDE for your iOS that lets you code in more than 100 languages. It supports FTP, FTPS, and SFTP access as well as third party services like Google Drive, Amazon S3, and GitHub. You can use this as a SSH terminal and Bitbucket client.
Have you found better GitHub iPhone apps? Please share them here.