This show, I feel, will deal a lot with the battle between religion and science, much like LOST has. It wasn't incredibly prevalent in the first episode, but will probably become more through-out the show. The main-character, an FBI agent named Mark Benford, is searching for the reason why this happened, while his kid's babysitter said "I think God did this... as punishment."
I've also formed a theory that this is just a really big promo for the final season of LOST. It probably isn't true but the show indirectly says "Whatever happened, happened." That sounds pretty familiar.
The only real problem with the show is the characters. The actors are all great, except maybe the kid, but she's a kid. I just don't feel emotionally connected to any of the characters. They all seem like they are only pawns in this mystery of the flashforward, which is interesting but a TV show can't survive on mystery alone. We need to care about the characters We need to want people to not die and we need to want the bad guys to lose. (By the way, there are bad guys, then there is also this REALLY bad guy who has yet to be introduced. I'll mention him later.) The only character I really care about so far is John Cho's and that's only because I like John Cho. The main character is apparently in AA, but that's mentioned briefly. I guess I can't blame the show after only one episode. The pilot was required to be all about the disaster. But in LOST's pilot we had the moment between Jack and Kate where she had to sew him up and he told her that story (you know what story). Remember before we all hated Kate? That was a long time ago. FlashForward didn't have that moment. Then again, FlashForward only had a one hour premiere, LOST had two hours.
The show really is great and I'll watch the second episode. But, if anyone says "When are we?" I'm done.