I've read in http://wiki.kernelnewbies.org/LinuxChanges (first feature commented in kernel 2.6.13), the new "Execute-in-place" feature, who allows to execure programs directly from a ROM-Flash memory, without copying them first to memory, which saves a plenty of it...will the next version of Knoppix use this feature? Is it useful?

More info here: http://lwn.net/Articles/135472/