I've made some open source projects available on GitHub:
CI Alerts - A CodeIgniter package to save and display different types of alerts. It wraps alerts with html based on the type of alert.
CI Authentication - A CodeIgniter authentication package for complete authentication management.
Carabiner - a fork of Tony Dewan's Carabiner library. This version also accepts and compiles .less files.
Base CodeIgniter App - a preconfigured codeigniter app with some useful submodules such as carabiner, authentication, twitter bootstrap, and PHPUnit.
I hope this will help you develop CodeIgniter apps more easily!