Several different electronic editions are now available to order. If you have a Kindle, you can now order a copy for immediate delivery. There is now a Kindle for iPhone application so you can buy and read Kindle books without paying for a dedicated reader.
Logos Bible Software continues to offer Raised With Christ on their pre-publication list, although the nature of that system is that there is no guarantee when or if they will actually produce it. Logos also have an iPhone app which functions as a pretty good reader for their electronic books.
For blackberrys and other PDAs, a Mobipocket version is already shipping.