You can never know for how long it will work. It might just stop suddenly because of a change. Also, such executable is NOT statically linked, it may be very system-dependant.
Also, I seem unable to have it work on OpenWRT with a 18.104.22.168 kernel, and some guys from Fedora are experiencing similar issue as well lately:http://www.spinics.net/linux/fedora/fedora-arm/msg00663.html
If it were and enduser device I wouldn't complain, but since Guruplug is developer-oriented I think that, as a developer, I should be given full access to what I need.