After a long period of silence the development of Frenzy will be continued. The next version will be more sysadmin-oriented (most of desktop applications will be removed and installation to HDD will be disabled).
Since unionfs is usuable in FreeBSD now, Frenzy will heavily use it’s advantages. The most notable feature is Frenzy Extension Modules (FEM), which allow to add applications to LiveCD/LiveUSB without rebuilding (similar feature in Damn Small Linux and SLAX).
Public beta build of Frenzy 1.1 will be available soon.
Source : Frenzy forum (16/11/2007)