I was informed yesterday by a very close friend who is a US Citizen and travels to St. Thomas (U.S.Virgin Islands) all the time (was just there a few months ago) that even though your license is a valid id to use when traveling there u still go through immigration when entering and leaving the country. just thought I'd share that info.
With that being said, I'll keep my butt on the mainland

not taking any chances
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App mailed to Chicago 11/1/2012 routed to Vermont
app received 11/5/2012 Biometrics scheduled/taken 12/17/2012, transferred to Nebraska on 8/13/2013
EAD approved 9/10/13 rcvd card 9/13 DACA approved 9/11/13 applied for ss 9/18 rcvd ss 9/23