I agree with everyone here.. The ESV Study Bible is simply amazing. I've emailed Crossway and forwarded the message onto the guys at Mantis... Crossway has already ported over their study bible to the Olive Tree (http://www.olivetree.com/) program, but I would MUCH rather use Mantis for bible study.
Wouldn't it be great if Crossway would allow people who bought the print edition to use a code and get a free or greatly reduced signal-license digital edition?
As for buying the ESV version twice, that is what I am wondering. My most preferred translation is the ESV and would rather wait than buy it twice, not to mention buying it in print...