Okay this is becoming insane - I just checked the REI online store and the Blue/Silver are in stock! I've got an estimated arrival date of April 07.
How is it possible that REI could have given such incorrect shipping information less than 24 hours ago (mid-June was the estimate).
Got my Silver/Blue yesterday and am quite pleased. The bezel is brighter/shinier than in the stock pictures, which looks really good to me. Paired it with the yellow band from the sapphire watch I previously bought (that will be returned soon) to see how it would look. The track was solid as well.