and the new home for codeIgniter is (drumbeat please... and another drumbeat) ...The British Columbia Institute of Technology (BCIT) in Vancouver, Canada.
Please read the official announcement from ellislab here.
IMHO, the decision made by the EllisLab is in the best interest of CodeIgniter. Although, I am not sure how far this framework can evolved in the future, I am standing by on what type of license the BCIT will have on their CodeIgniter release.
I am hoping that BCIT will remove the PHP 4 fallback and focus on the implementation of the PHP 5 standards. This could have been done by many fine coders long time ago, but due to licensing restrictions, no one even bothered to take the first step. The version 2.2.0 was an execllent move, but still the PHP 5 coding standards are partially implemented.