Confirmed:
butterfly labs is a scam. They have no real product, and I'm quite sure they have no intention of developing one.
confirmed huh? Sounds like a troll to me.
They shipped 2 of their 5GH units to beta testers. They are not a "scam". Now, whether or not you'll be able to break even. That's yet to be seen. If they ship all the units people have ordered the hash rate will grow so much (the difficulty will rise so much) that you won't me able to mine much more with a 50GH unit than you can today with a decent video card.