ZMLarch is the successor to my previous livecd projects, ZMliveCD and ZMLinuxOS.
http://www.zoneminder.com/wiki/index.php/ZMLarch
http://www.zoneminder.com/forums/viewtopic.php?t=11873
Based on Arch Linux, it is simple and relatively light weight. ZoneMinder is packaged and I expect to be able to support this release with updates for some time.
I have no plans to continue support ZoneMinder 1.24.x for previous rpm based systems. There are a number of other liveCD/DVD solutions available so there should be something that fits for everyone.