I'd wait in the line for people without reservations first to make sure I can get my hands on the 32 GB. Then you can handle the 16 GB iPad cancellation/return. If you do the 16 GB thing first you might miss out on a 32 GB while you're doing the reservation pick up.
Don't call the store...your asking for a screw up. Handle it when you get there.They probably will if they have them available. Remember, the walk in line is first come, first served. You might try calling the store today and see if they'll swap it (on paper) for you.
"Unreserved Stock" LOL!Hard to say, and probably depends on the store. Technically you reserved a 16GB so that is what Apple sent them. They could pull a 32GB from the "unreserved" stock, or they could tell you you have to get into the "unreserved" line.
That's weird because it would mess up their reservation numbers, so they must have tons of extrasjust talked to my apple store and they said that I can upgrade to a different model day of, they just can't change the reservation. Sounds like they'll be having plenty of extra at my store.
In the DC area, called the store where i had my reservation and they indicated that you can cahnge your order if they are in stock. There early they said not a issue. Checked with another store in the area and they said the same thing. FYI I did this with the 3gs, swaped on the spot.That's weird because it would mess up their reservation numbers, so they must have tons of extras