I was looking for an explanation of ext4 main features when I found this great discussion on a launchpad bug report.
The most important explanations are said by Thedore T’so (#45, #60, #62,etc.) , a kernel hacker and actually maintainer of ext4 filesystem. Recently T’so (January 2010) is employed by Google just for work on kernel, filesystem and storage stuff.
It’s for reasons like these that I like Free Software and Open Source.
Only with this methodology of work is possible this tight collaboration and head to head for all developers around the word.
Just one click away! Amazing!