My test sticks pulled right around 1.4A from a solid 5V to hit 16.5GH (300MHz), but closer to 1.2A for 275MHz (15.1GH).
Those hash rates are very nice for that ampage The stick miners definitely look bad ass!
Would be interested in any hub you develop as well.
At 1.2A I might be able to power the miners on the 49 port hub...but it would be pushing the limits
well at freq 250 my 2 test sticks use 1.07 amps and 1.12 amps
I still have the nice 19 port hubs you sold to me and I have 2 port bridges. I also ordered some of these cables
http://www.ebay.com/itm/221661361513?