got my plug yesterday and it's rebooting too.  Running on 240V and with gigabit Ethernet reboots after a few minutes.  On the plus side with external drive plugged and 100% CPU load and streaming music over WiFi it seems stable.  It's hot but I was expecting hotter - my Macbook power brick is gets much hotter.

Same here.  website said shipped on 4/30 but I emailed them yesterday and coincidentally just now got a tracking number via email and fedex site shows ship date of 12th May.  I suggest if you want your plug quickly email or call GlobalScale to "remind" them.