As a quick fix for some initial mental uncomfortableness in the limited shell you get by default, I copied the binary busybox from my arm linux based NAS. This busybox contains telnet and telnetd, and the ls is compiled to support rudimentary colour output (not configurable I think, but thankfully doesn't require --colo(u)r=(yes|auto) added, you'd have to alias ls otherwise as many linux dists do). I've not compared the two fully yet, as diff isn't install by default

Oh and I copied the built-in busybox to busybox-suid and made links for su and ping. I hope my minor tinkering isn't eating up too much space on / (only 600k out of the default 50meg left).