Well, in fact it's a toolchain question. Hope somebody (probably mbm) could unveil the things.
Recently I've build gcc-3.4 based uclibc toolchain. -Os option now really makes small executables and optimization is started to work with mips (in fact gzipped binaries are have the same size as before) and this makes sense to RAM usage.
I've also make a diff from broadcom provided gcc-3.2.3/binutils-2.13.2.1 toolchain. If anyone is interested, I've made them available at http://wl500g.dyndns.org/brcm/
So, the question is regarding nas. To my knowledge broadcom compiled nas is linked against uclibc 0.9.19 and glibc. So, until mid of August it was impossible to use it with OpenWrt which uses none broadcom toolchain. Am I correct? So, that is changed in August? I've tried to examine cvs but have not found anything except nas wds support... Please clarify.