Since nobody wants to tell anything about prices, I'll give you my very (repeat: very) rough estimate.
Frist thing. We know they will be using Atrix-7 200T in a 1156 pin package FPGA. Motaboy (the designer) says they have 104 kH/s per chip (theoretical). Reference: (
https://forum.litecoin.net/index.php/topic,6211.30.html)
ONE chip costs about 250-300$. For the 1MH/s unit they will need at least 10 chips, 12 more likely. We are at $3500 now.
We don't know much about the other hardware (case, boards, RAM, PSU), but it could be done for about $500. So about $4000 / MH/s.
A 2 MH/s GPU rig will set you back about $2000.
Basicaly their FPGA will give 4x LESS hash power per $ investment. What is interesting is the lower power consumption.
Profitability at current Litecoin diff prices, etc:
GPU (2MH/s, $2000, 1000W, 0,15/kWh): break even in 218.90 Day(s)
FPGA (1MH/s, $4000, 250W, 0,15/kWh): break even in 738.28 Day(s)
So what they need to do is get the chips at at least 50% discount to get even close to GPU mining...