I had the lot preordered at DD - was charged for Rom, Banshee, Warlock, and Iron Man yesterday, and then Daken and Miles today. So I suspect they are genuinely in stock and will be shipping out forthwith.
One thing DD does that I don't see at many other online retailers is a constantly updating ship date for preorders. The ETA updates regularly, including moving dates forward as they are close to being available or pushing them back if they're arriving after the original ETA. It's not always perfect - this wave was originally scheduled to be available 4/1, then pushed back several times to 4/29, then actually became available yesterday and today - but I like that they make the effort. It also gets me going back to their site over and over again to get the most up to date estimate.