Re: How can I send an Armory transaction without first downloading whole blockchain?

I'm going to South America soon on a vacation without access to fast internet and I'll only take my smartphone with me.

If, in the unlikely scenario that the bitcoin price rallies to $10k or $20k, I want to be able to do this:

Run to a store, buy two laptops. One offline and one online. Open up the offline computer, remove the wifi chip.
On the online laptop, download my encrypted Armory wallet from DropBox. Burn the encrypted wallet, as well as Armory, on a CD and bring it to the offline computer.
Using the normal Armory methodology, broadcast a transaction to send some of my bitcoins to my exchange account so I can sell them, without having to download the whole blockchain on the online computer (because that could take months on the slow internet).

Does Armory allow me to do this somehow?

Why are you going to this hassle for a low probability event? Get a Trezor and set up with online myTrezor.com and transfer bitcoin sufficient for your vacation to your Trezor. If you have a late model Android phone with OTG ability you can download Mycelium on your phone and use Trezor to sign transactions. Armory cold storage is not the only secure way to store and spend bitcoin, just the most private right now. If you choose DHL shipping when you order a Trezor you will have it in two or three days.

What about this:

Create a new Breadwallet wallet on my iPhone.
Put the recovery seed (12 words) on Dropbox, in a file encrypted with a password.
Transfer the bitcoins I'd want to sell onto this wallet.
Reset the Breadwallet app and go to South America.
If that unlikely event occurs, just reset the Breadwallet with the seed on Dropbox, transfer them to the exchange and sell them.

How does this method compare with yours, in your opinion? (I'm just trying to avoid buying extra devices. Already have an iPhone. Update: I just realized my original method involved buying two laptops LOL. Anyway. I'm kinda liking my Breadwallet idea now. Looking forward to critiques.)

Trezor does not work on iPhone. They refuse to pay licensing fees to Apple I think. I would never keep private keys for more than a few bitcoin on an insecure device like a phone. You could just use Trezor with your laptop while on vacation. Trezor works with OS X 10.8 or better just not on iPhone.