Angela, will you be sleeping in AT shelters at all, or are you planning on spending almost all of your nights in the hammock?
If you're going to be in the shelters most nights, why not ditch the hammock and bring your tarp? That'll cut two pounds! That more than makes up for your luxury items.
If you're going to camp, then the hammock makes sense.
You've got five tops: A tee, a tank, a long sleeve, a thermawrap jacket, and a rain jacket. I'd say leave the tee or tank behind and just sleep in the shirt you didn't wear hiking that day (the tee/tank or long sleeve). That's a couple more ounces for you and one less thing you have to pack, unpack, wash, and worry about.
Crocs make a great camp shoe. I used to use them, but now that I've got trail runners I don't see the point. If you want something easy to slip in and out of, get a 2 or 3 oz pair of cheap flip flops. They pack smaller too. I wouldn't be surprised if Old Navy has theirs on sale already. You could also make gram weenie flip flops out of some old shoe liners for the soles and some laces for the strap.
3 oz seems like a lot for Aqua Mira, but I only JUST bought some for the first time and haven't weighed them yet. That said, how many are you bringing at a time? If a lot, maybe you could ship some ahead?
Do you need both glasses and contacts?
Q-tips? You're a thru-hiker now, no need to clean your ears! Plus, I hear ear wax makes a great firestarter.
I think you're making a good call on not bringing the Ipod. Doesn't seem worth it for the weight.
I would recommend as others have that you should at least bring a razor blade if nothing else.
Also, just to get an idea of what your base weight is, aside from your full skin out weight, maybe you could try the list excluding what you'll be wearing? Those shoes add a lot of weight. Then again, I think you've only got the weight listed for one shoe.