-* Allow tar to create archives with sockets, devices, and other special files
-* Make insmod actually work
-* dnsdomainname
-* traceroute/nslookup/netstat
-* rdate
-* hwclock
-* killall
-* stty
-* tr
-* expr (maybe?) (ash builtin?)
+With sysvinit, reboot, poweroff and halt all used a named pipe,
+/dev/initctl, to communicate with the init process. Busybox
+currently uses signals to communicate with init. This makes
+busybox incompatible with sysvinit. We should probably use
+a named pipe as well so we can be compatible.
+
+-----------------------
+
+Run the following:
+
+ rm -f busybox && make LDFLAGS+=-nostdlib 2>&1 | \
+ sed -ne 's/.*undefined reference to `\(.*\)..*/\1/gp' | sort | uniq
+
+reveals the list of all external (i.e., libc) things that BusyBox depends on.
+It would be a very nice thing to reduce this list to an absolute minimum, to
+reduce the footprint of busybox, especially when staticly linking with
+libraries such as uClibc.
+
+-----------------------
+
+Compile with debugging on, run 'nm --size-sort ./busybox'
+and then start with the biggest things and make them smaller...
+
+-----------------------
+
+xargs could use a -l option
+
+------------------------------------------------------------------