You can likely reverse a tiny bit of the info from this posting (at least the processor part):
and the OS appears to be some variant of Linux (based upon the fingerprint from services it uses).
There's a few thread comments that the C-4's may run Ubuntu, based upon the specific NTP (time) servers they're using. There are (used to be?) clues in the DHCP requests they're making, based upon the DHCP Client agent they're running (and it's somewhat older version)
Certain calls have been locked out, so it's tricker to see how much memory is available/used/left. I recall seeing a few discussions on the board about what might be the right info to expose, since it's not for everyone 
