Last thing I read they were considering an April Release date. But other sources are saying the end of 2007.
But dont get your panties in a bunch because You wont be able to aquire them wholesale for a long time. They might have them through DBL but as I said their price might only be a few dollars lower then the retail selling price.
Most likely you can pay full price and put the item on ebay and still make money. For some stupid reason items still go above retail when thier a new release.