you have a very clear way of writing and expressing your thoughts which i admire and its coming thru in your implementation of Armory. i've been experimenting with some of the other wallets compared to yours and its becoming clear to me that this offline wallet feature is truly the ONLY way to 99.99999% secure your wallet (% for illustrative purposes only!). eto please provide the actual probability of inserting malware into the usb key!
![Wink](https://bitcointalk.org/Smileys/default/wink.gif)
the alternative wallets either are not encrypted or offer a server based solution which quite frankly i'm not comfortable with. i'm sure the Blockchain.info and Electrum guys are totally honest but what if they get kidnapped or knocked over the head a few times and forced to corrupt their servers? MultiBit looks good too but even with its USB stick solution one still has to bring their keys into RAM at the point of signing tx's which exposes them to malware in waiting.
this was helpful for me and was written by piuk himself concerning server based solutions: http://bitcoin.stackexchange.com/questions/2240/what-are-the-risks-of-using-strongcoin-com-as-an-online-wallet
the various splitting of keys solution also bothers me but i won't get too much into that since i probably don't understand it well.
perhaps i am being unfair to the other wallet services and suffer from a lack of knowledge. i'm sure their services will satisfy a majority of people. however, personally, i prefer to be in total control with my keys locked away in my safe with no one to blame but myself if i lose some coins.
the other thing thats very important here is that when one chooses a product one also chooses the person/people behind it. i have followed eto's writings ever since he's joined the Forums and his knowledge is astounding. its helpful to watch the discussions between him and other developers and you will get a sense of where he stands. another very telling sign is when another developer (Jim618) from a competing wallet (Multibit) campaigns for eto to get crowdfunding; that says alot. the fact that Armory's beta version is already functional and operational w/o any bugs that i can identify is impressive as well.
these 2 posts by eto were instrumental to me in investing further into Bitcoin last year even tho many of the concepts were over my head: https://bitcointalksearch.org/topic/m.565787 and https://bitcointalksearch.org/topic/on-the-wire-byte-map-opchecksig-diagram-knowledge-donation-29416
tl;dr
short version: eto's one bad boy!