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Josh (and others at BFL) have stated multiple times that the Jalepeno will be powered by USB. I don't know where people keep getting this idea of it having a power plug. It might be multiple USB ports, but it will NOT have an external power source other than USB.
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It will - for the coffee warmer - that has been stated ...
(gotta be the most stupid idea I've yet heard of in BTC mining hardware

)
Go order a real ASIC device - not a coffee warmer toy ...
https://bt.irlbtc.com/view/79637.msg1177543#msg1177543... again with more details and even support for developers to get real mining software running on it at release time!
(Yeah my name's there also)
Where was it stated that the Jalepeno would require a power plug? Everything I have seen from BFL has said that it will not.
Also, an FPGA? You're kidding, right?
With that said, the maximum wattage a USB port can provide is about 2.5 watts. So there's your expected power draw maximum (or maybe 5 watts if you believe it will utilize 2 USB ports).
I've heard USB 3.0 provides additional power. The following thread suggests 4.5w, but it's hardly authoritative.
http://forums.anandtech.com/showthread.php?t=2255324Does anybody know for sure what kind of power USB 3.0 can provide?
They wouldn't go with USB 3.0. That would alienate 95% (NOTE: statistic made up) of the population from using them.
"I don't know where people keep getting this idea of it having a power plug."
Because BFL has stated it will.
But then again, they also stated "four to six weeks".
I must've missed this announcement. Where did BFL state that it will have a power plug? The most recent message about the Jalepeno was yesterday from Josh, and he said that it would be powered by USB.