I don't know.  They seem pretty confident about their 55nm products that they say will be shipping from in-stock warehousing in October.  That sounds like they are on the way and will be in housings ready to hash in a few months and will only sell that way, no more pre-orders.

Our 28nm units will outperform them, but not by nearly as much as they outperform the 130's and 110's.