Long wore #77 in college, but Drew Mormino is wearing it with the Dolphins....I suspect some amount of the delay in announcing a jersey number had to do with working through some triviality related to potentially getting #77.
But, then, Long walked onto the field wearing #79.
So is that the end of it? Hardly. According to the Dolphins pro shop: 2008 Dolphins #1 Draft Pick. Jersey will not ship until the official player's number has been approved by the Dolphins. ETA 3-4 weeks
And they show it as 00, which I think is a cool number.
[editor's note, this image was lifted from the Dolphins Pro Shop and is copyright by eSports Partners, inc. It is shown here because of its amusement factor]