Comparable, if not better, and still available for February 2016 delivery is the $9 C.H.I.P. computer from Next Thing. Already mentioned on the forum a while ago (link below), but I add it here as I can't find it in this thread.
The $9 C.H.I.P. computer uses a 1GHz Allwinner R8 Cortex CPU (ARMv7) has 512MB / 4GB pre-installed Debian, on board Wi-Fi & Bluetooth plus various add on "shields". You can even get a version that has built in display and qwerty keyboard (Sinclair ZX80 style) but shipping a few months later.
Shipping outside US is $12 to $25 I believe.
Forum post (for discussion):
Kickstarter for ordering: