I ordered Tim Challies' Visual Theology for Vyrso, and just noticed an email from Zondervan saying it had been released, so decided to have a look at the Vyrso page to see if their was a projected release date for Vyrso or anything, and... well, it's not there any more - have you chosen not to sell this title for the time being?
If so, would you normally alert those who'd preordered to advise that you won't be able to meet the order? I'm just a bit confused as I've searched my emails and I appear not to have received anything (there's a small but real possibility that I deleted it without realising).