Just saw this on MuscleNerd's tweet and was gonna post it (you beat me)
Amazing little device !
Heres the serial debug output from the evaluation board. For technical details, its exploiting the iBoot USB exploit found in firmware 3.1.2 and below, and then jailbreak/boot the tethered device as Blackra1n does.
Looks a bit large for a dongle.
i could not open either link (forbidden). so i searched for more info since this sounds like a real lifesaver. i found a link with a youtube video in it. they called it the "idongle" is this the same thing you guys were talking about?
http://www.machackpc.com/iphone/hardware-dongle-to-boot-iphone-tethered-jailbreak-3-1-2/