So I've been seeing a lot of stuff about how BFL hasn't shipped people's ASICs yet. This thread isn't about that.
I just want some info about this:
https://products.butterflylabs.com/homepage/5-gh-s-bitcoin-miner.html

Am I incorrect in thinking that 5 GH/s is 5000 MH/s?
At $274 (assuming BFL ever gets their shit together) isn't that an excellent deal?

Also, it says it needs to be plugged into a host computer. What part of the host computer does it draw on?